Joakim Noah hasn’t set foot on an NBA court since Feb. 4, and his season was all but ended when he had knee surgery at the end of February. Last summer, Phil Jackson took a $72 million gamble on an aging Noah that has not worked at all, and left New York with an anchor of a contract for three more seasons after this one.

It is now official that Noah is done for the season, but not because of the Knicks or his injury.

During his recovery, Noah violated the NBA’s drug policy and will pay with a 20-game suspension, the league has confirmed. Noah tested positive for “Selective Androgen Receptor Modulator LGD-4033” a non-steroid bodybuilding supplement banned in the current CBA.

Adrian Wojnarowski at The Vertical at Yahoo Sports broke the news Friday night. .

Noah tested positive for an over-the-counter supplement that is prohibited under the outgoing Collective Bargaining Agreement, league sources said. Noah, 32, is expected to serve 10 games of the suspension to finish out the 2016-17 regular season and 10 games to start the 2017-18 season, league sources said. The National Basketball Players Association’s investigation concluded that Noah hadn’t “knowingly or willingly” violated the policy and cooperated fully with the league’s probe, league sources said.

According to reports, this substance is banned in the new CBA but Noah could have appealed that he took it unknowingly. Over-the-counter supplements could be put in his regular workout recovery drinks and he was unaware of it, although there are questions about the details on how it happened.

Traditionally, the player has to be healthy enough to play before the league starts the suspension. Noah has been out for more than a month, but if a league doctor says he is healthy enough to play the then the clock on the suspension can start now. The 10 games this season is no big deal for the Knicks, he wasn’t going to play anyway, but the 10 at the start of next season could sting (depending on how they plan to use him).