Philadelphia Phillies ace Zack Wheeler underwent a "successful thrombolysis procedure to remove a blood clot in his right upper extremity" on Monday, the team announced. Further treatment and a recovery timetable are still be determined.

MLB Central discusses Zack Wheeler being placed on the IL with right upper extremity blood clot and what it could mean for the Phillies

We've reached the point in the season, with roughly six weeks to go, when every injury has a chance to be a season-ender. So when the clear front-runner for NL Cy Young lands on the IL, it's nothing short of a gut punch.

The Birds won it all after the MVP favorite went down. Wheeler is the best, but the team already has won games despite absences this season.