The Boston Celtics got their 2020 NBA playoffs journey out to a good start on Monday evening, beating the Philadelphia 76ers, 109-101 in Game 1 of their first-round series. Unfortunately, they lost a key member of their starting lineup in the process. 

Late in the fourth quarter, Gordon Hayward landed on Daniel Theis‘ foot while fighting for a rebound, and suffered a nasty looking ankle sprain in the process. He hobbled off the court, and will be out for four weeks with a Grade 3 ankle sprain, the team announced Tuesday.

With the condensed schedule inside the bubble, Hayward will be out for the rest of the first round, and likely the entire second round as well, should the Celtics advance. The conference finals are tentatively scheduled to begin on Sept. 15, which is just shy of four weeks from Tuesday.