MLB Places Closer Clase on Leave Amid Gambling Investigation

Photo by Erik Drost, CC BY 2.0, via Wikimedia Commons
Key Takeaways
- Clase will be on paid leave until August 31
- Details around the investigation have not been confirmed
- The MLB opened an investigation into Guardians starter Luis Ortiz earlier this month
The Cleveland Guardians are not having a good July.
The MLB has announced it has placed the team’s closer Emmanuel Clase on non-disciplinary paid leave through the end of August. The move comes as the league has opened an investigation into unusual betting patterns around some of his pitches. It marks the second gambling investigation of a Guardians pitcher, with an investigation into starter Luis Ortiz launched earlier this month.
No other players or coaches have been included in the league’s investigation.
Details Over Accusation Remain Confidential
While the MLB has placed Clase on leave and confirmed its investigation, no information on the allegations against the closer has been released. However, it seems likely that the accusations center on one or more individual pitches that received an unusual amount of action with sportsbooks.
The MLB is getting an unwanted crash course into how to conduct gambling investigations. While they are looking to keep information private as the investigation is conducted, past attempts to do so have not lasted long. Leaks usually emerge after a week or so, leading the public to learn the details long before a ruling is made.
Micro-Betting Back in Spotlight
Micro-betting is a somewhat niche form of gambling available in many US markets. It allows bettors to wager on specific game events, such as the outcome of an individual pitch. This is meant to allow bettors to get in on the action while watching a game, but it's also become a tool for spot-fixing.
Spot-fixing is a term for when an athlete purposely affects a single moment or play of a game to win a bet. The moment doesn’t usually affect the outcome of a game, making the scandals harder to detect and even harder to prove. As a result, more fans and bettors are beginning to question the integrity of the major US sports leagues.
Micro-betting may not be around much longer. The recent scandals have spread concerns to the public, and New Jersey recently introduced a bill to ban the controversial betting option.
MLB Gambling Enforcement Faces Test
This isn’t the MLB’s first rodeo with sports betting, but the investigations into Ortiz and Clase represent a new challenge. It will test the league’s ability to investigate micro-betting scandals. If they fail to connect either player to the suspicious betting patterns around their play, it could lead others to try similar spot-fixing.
While Ortiz is relatively unknown to many fans, Clase is a three-time All-Star. He is an elite closer who has been a part of some great Guardians teams. That has led his suspension to garner even more attention from the public, who are learning about the dangers of spot-fixing for the first time.
With the public and players watching, the MLB will be feeling the pressure to provide convictions.
Michael is an avid sports fan and a veteran bettor from Milwaukee, Wisconsin. He learned the trade from his grandfather in Las Vegas as a kid. As an adult, Michael started picking games for a small sports betting site and has built it into a career. His experience allows him to provide tips and information to help other bettors improve their game. Michael cheers for all Wisconsin pro teams, the Arizona State Sun Devils (his alma mater), and the Ottawa Senators. He specializes in baseball betting but has extensive experience in football, basketball, and hockey. When he isn’t pouring over stats, he’s spending time with his two young children or hiking and enjoying the outdoors.
Related News

Smoke From Wildfires Could Impact Sunday’s World Cup Final
Smoke from Canadian wildfires is pouring into New Jersey, where the World Cup Final will be held on Sunday. FIFA isn’t preparing to move or delay the match, meaning players will have to deal with poor breathing conditions on Sunday.

North Carolina Sports Betting Tax Revenue Drops Ahead of Hike
North Carolina’s sports betting market saw a drop in tax revenue in June, one month before the state’s recently approved tax hike goes into effect. The drop was attributed to high bettor win rates during the World Cup and NHL Playoffs.

Delaware Lottery Announces Launch of New Sports Betting Kiosks
The Delaware Lottery has launched 89 new self-service sports betting kiosks at official retailers across the state. They will offer more wagering options, giving many residents far easier access to sports betting, despite concerns about problem gambling.

South Africans Wager Record Amounts as Online Betting Boom Continues
South Africa's gambling industry continues to expand at a rapid pace, with recent figures showing record levels of betting activity across the country. Online wagering remains the primary growth driver, as mobile technology and increased digital adoption reshape the gambling landscape.

One Year Later, Illinois Per-Wager Tax is Still Going Strong
Illinois per-wager tax just celebrated its first anniversary since launching last summer. While fewer bets are being placed, the revenue for sportsbooks and the state continues to rise. Will that success lead more states to follow Illinois’ lead?

Will Missouri’s Sports Betting Growth End Tax Hike Efforts?
Missouri’s sports betting market delivered strong numbers in June, setting a record handle. The success comes after months of disappointing revenue for the state, prompting calls to raise taxes on sportsbooks. Will May’s numbers be enough to end that effort?

The Mystery of Table Tennis Betting’s Success in Colorado
The Colorado Division of Gambling’s May revenue report shows that table tennis saw more wagers than soccer and hockey. We dug into the numbers to find out why the niche sport is so popular among bettors in the Centennial State.

Nebraska Petitions Supporting Online Betting Submitted
Tax Relief Nebraska has submitted signatures to put online sports betting on the ballot this November. The effort comes after years of legislative deadlock over the issue, and amid growing concerns over the impact of sports prediction markets.

Sportsbet Cleared by AUSTRAC After Completing AML Remediation Programme
Sportsbet has successfully completed a major anti-money laundering remediation programme, marking an important milestone for Australia's largest online bookmaker. The development highlights the growing focus regulators are placing on compliance and financial crime prevention across the gambling sector.

CFTC Announces Investigation Into Polymarket Ad Campaign
The CFTC has opened an investigation over social media ad campaign from Polymarket. The move comes after the Wall Street Journal released a report showing the operator was asking social media influencers to promote fake wins on its sports markets.

NRL Clubs Face Gambling Sponsorship Shake-Up Under New Australian Reforms
Australia's proposed gambling advertising reforms could dramatically change the relationship between sports betting companies and professional rugby league clubs. Several NRL teams may be forced to remove betting sponsors from jerseys and other club assets as the government moves to tighten gambling advertising rules.

New Mexico Rep Asks Tribes to Open Talks Over Mobile Betting
New Mexico Rep. John Block has asked the tribes to open talks over legalizing mobile sports betting. He cited the growth of federally regulated sports prediction markets, which offer residents a legal way to wager on sports.

North Carolina Lawmakers Approve Bill to Help Audit Bettors
North Carolina lawmakers passed a bill proposing new tax reporting requirements for sportsbooks. The goal is to help the state audit gambling winnings claimed on tax returns, keeping residents honest while also boosting tax revenue generated by the industry.

NFL Rebuffs Sorsby’s Request to Enter Supplemental Draft
The NFL announced it will be canceling the 2026 supplemental draft due to Brendan Sorsby. In a letter to the quarterback, officials expressed concerns that he was attempting to sidestep his gambling violations. Sorsby’s attorney promised to challenge the decision.

South African Regulator Warns About Fake Betting Apps
South African gambling authorities are urging consumers to stay alert as fake betting apps and cloned gambling websites target sports fans during the 2026 FIFA World Cup. Regulators say scammers are becoming increasingly sophisticated in their attempts to imitate legitimate operators.

Prediction Markets Sue Kentucky Over Tax on Transaction Fees
The Coalition for Fair Markets has sued Kentucky over its new 14.25% tax on prediction operators passed by lawmakers back in April. The group argues the tax is discriminatory, despite Kentucky cracking down on all forms of sports betting.

Wisconsin Opens Talks With Tribes to Launch Mobile Betting
Wisconsin’s Governor has opened talks with 11 local tribes to negotiate the launch of mobile sports betting. The two sides need to agree on a legal framework for the new market, including revenue-sharing requirements for commercial operators.

Nevada Rep Calls Out CFTC Over Sports Prediction Markets
Nevada Rep. Dina Titus called out the CFTC’s defense of prediction markets on social media, accusing the regulator of corruption. She rejected the regulator’s proposed regulations for the industry and called for Congress to take action to rein it in.

New Mexico Files Lawsuit Against Kalshi Over Sports Markets
New Mexico has filed a lawsuit against Kalshi over its sports prediction markets, arguing they violate state laws. It closely resembles lawsuits from several other states who have also targeted Kalshi and its rivals over the last year.

Court Ruling on Sorsby Scandal Creates Nightmare for NCAA
A Texas court ruling will allow Brenden Sorsby to play for Texas Tech this upcoming season, despite placing over 1,000 wagers with online sportsbooks in the last four years. The ruling sets a dangerous precedent that could haunt the NCAA.

Illinois Lawmakers Approve New Tax for Sports Contracts
Illinois lawmakers have approved a budget that will add a new per-transaction tax on sports contracts. The tax was added despite the state not having legal authority to enforce it, and is likely to result in more lawsuits from the industry.

Arkansas Sees Record Handle After Sports Betting Expansion
Arkansas sports betting placed over $100 million in wagers in April, setting a new monthly record. The success came as FanDuel and DraftKings had its first full month in the market, though they didn’t contribute much tax revenue.

Rhode Island Approves Bally’s for Mobile Betting License
The Rhode Island Lottery has awarded Bally’s with a mobile betting license. It will launch in November, becoming the first new sportsbook to enter the market since 2019. However, lawmakers fear the state’s high tax rate will prevent future expansion.

Tennessee Tests CFTC By Stepping Up Fight Against Kalshi
Tennessee’s Attorney General has escalated its fight against Kalshi, arguing the operator is violating the state’s sports betting laws. A New Jersey judge allowed the operator’s platform to remain live, a decision the AG hopes an appeals court will overturn.

Polymarket Files With the CFTC to Launch Parlay Feature
Polymarket has filed with the CFTC to launch a new parlay-style feature for its sports markets. The move is meant to help it compete with Kalshi and mobile sportsbooks, and was made despite the tumultuous future facing the prediction industry.

North Carolina Lawamkers Consider Tax Hike for Sportsbooks
North Carolina lawamkers are reportedly considering a tax hike for sportsbooks as part of its upcoming budget. They are considering raising the current 18% rate by up to 12%, or adding a per-wager tax similar to the one in Illinois.

CFTC Sues Minnesota Over Its New Prediction Market Ban
The CFTC has filed a lawsuit against Minnesota over its new restrictions on prediction markets, which would ban markets involving sports and politics. The states’ new rules allow the state to file criminal charges against operators who violate them.

Wisconsin Tribes Set to Pick Up a Big Win Against Kalshi
A US District Judge has ruled that Wisconsin tribes have the right to sue Kalshi over sports prediction markets. While he rejected a request to force Kalshi out while their lawsuit is settled, he found the operator is likely violating IGRA.

Will Sportsbooks Look to Enter Wisconsin’s Mobile Market
Wisconsin has officially paved the way for tribal-run mobile sports betting, but fears remain that commercial operators won’t join. Find out the latest here!

Michigan Senate Strips Per-Wager Tax From Budget Proposal
The Michigan Senate passed the latest budget, but rejected a proposed per-wager tax for sportsbooks. Lawmakers from both parties worried the change would shrink the state’s sports betting market, despite the results seen from a similar tax in neighboring Illinois.

Flutter Ousters FanDuel CEO After Lowering 2026 Guidance
Flutter has removed Amy Howe as FanDuel’s CEO as it looks to invest more in prediction markets. President Christian Genetski will take over the role after playing a crucial role in the expansion of mobile betting in the US.

Are The Walls Closing in for the Prediction Industry
A recent bipartisan effort by attorneys general and an order in Texas have the prediction industry reeling as May begins. The two actions show the waning support for the controversial platforms, and could lead it to soften its stance going forward.

CFTC Expands Legal Fight Over Sports Prediction Markets
The CFTC has expanded its legal fight to protect prediction markets by suing New York and Wisconsin. The regulator claims both states have illegally targeted operators despite lacking any regulatory authority. Arizona, Connecticut, and Illinois are also facing similar lawsuits.

