The NBA confirmed on Tuesday, January 23, that Cleveland Cavaliers Tristan Thompson tested positive for performance enhancing drugs Ibutamoren and SARM LGD-4033, and as a result will be suspended for 25 games for violating its anti-drug program. Thompson’s suspension, without pay, will begin with the Wednesday, January 24, game between the Cleveland Cavaliers and the Milwaukee Bucks. Thompson could return in mid-March, under the terms of his suspension.

Ibutamoren and SARM LGD-4033 are banned by the NBA and listed under the steroids and performance-enhancing drug section of the collective bargaining agreement.Ibutamoren is a substance that is known for increasing levels of Human Growth Hormone (HGH) in the body. It has been banned in sport due to a wide range of dangerous side effects. Meanwhile, Ligandrol is a drug designed to facilitate strength and muscle building by enhancing the burning of body fat and increasing the user’s physical endurance.

Thompson, 32, was originally drafted by the Cavaliers in 2011, winning a championship in 2016 alongside teammates LeBron James, Kyrie Irving and Kevin Love. After nine years in Ohio, Thompson had short stints on the Boston Celtics, Sacramento Kings, Indiana Pacers and Chicago Bulls before the 12-year veteran rejoined the Cavaliers in September as a free agent. Thompson is averaging a career-low 3.8 points per game through 36 games this season.

The Cavaliers (26-15) will face the Bucks at 8 p.m. EST Wednesday in Milwaukee.

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