PHILADELPHIA - Phillies pitcher Zack Wheeler had a successful thrombolysis procedure to remove a blood clot in his right upper extremity by Dr. Paul DiMuzio at Thomas Jefferson Hospital on Monday, the Phillies announced. The club said further treatment and a subsequent timeline of recovery will be determined.

Zack Wheeler is one of the Phillies best starters alongside Aaron Nola. After a blood clot was found, he is now facing a scary timeline for returning in time for a playoff run.

Phillies ace Zack Wheeler underwent thrombolysis surgery Monday morning to remove a blood clot near his right shoulder. The Phillies said Wheeler had the procedure, performed by Dr. Paul DiMuzio, at Thomas Jefferson University Hospital. The club said Wheeler's timeline to return and further treatment options are to be determined.