Marlins outfielder Christian Yelich has issued a response to a video posted online allegedly showing him engaged in a sex act with a woman. His lawyers are investigating.

A false and defamatory video was tweeted about me the past 24hrs. It is 100% not me in the video. My attorneys are looking into it — Christian Yelich (@ChristianYelich) July 18, 2016

Yelich's tweet was deleted shortly after being posted. The video in question was posted on Twitter by user @RealMarlinsFan. Both the video and that Twitter account have since been deleted as well.

Christian Yelich's lawyers are looking into a 'defamatory' video. USATSI

Yelich, 24, is enjoying a breakout season in 2016. He's hitting .318/.399/.475 (138 OPS+) with 24 doubles and seven home runs in 86 games.