It was because of the potentially devastating news awaiting Celtics superstar Jayson Tatum, who had to be carried off the court late in the fourth quarter after suffering a noncontact lower leg injury. "I mean, at this point, I'm concerned about Jayson," Celtics center Al Horford said. Celtics coach Joe Mazzulla said Tatum would undergo an MRI on Tuesday, but the team didn't release an official statement on Tatum's injury, and Mazzulla had no other update. "I'm not sure," Boston guard Jaylen Brown said when asked what Tatum's injury could mean for the franchise moving forward. He had never sat out a playoff game before a wrist injury cost him Game 2 against the Orlando Magic in the first round.