The Celtics again fell below .500 with a loss to the 76ers on Tuesday night.
Jayson 'Bacon' Tatum's Ultimate Goal is to Bring a Championship to Boston
Smart suffered the injury during the second half and was helped off the court and taken to the locker room.
For many athletes, the greatest risks will come after the crisis passes.
The NBA is usually portrayed as forward-thinking and the NHL as bumbling. But lately, those roles have reversed.