If the Sixers chances' to get out of the East were low having two All-Stars, now they're lower, as Ben Simmons will be out for the campaign.

Adrian Wojnarowski from ESPN reported that Simmons underwent a left knee surgery to remove a loose body and is expected to miss the rest of the season.

This comes after Shams Charania of The Athletic reported "treatment options are currently being considered" after the injury was diagnosed as a subluxation of the left patella. 

The 25 year-old, who missed his first year in the NBA due an injury, missed time with back and nerve injuries before the season was suspended in March.

This season, he averaged 16.4 points, 8.0 assists, 7.8 rebounds and 2.1 steals per game while shooting 58.0 percent from the field.

With Simmons out for the season, it will come down to guards like Shake Milton, Alec Burks and Glenn Robinson III to step up and play some important minutes if they want to have a chance to make it past the first round.