In other Boston injury news, All-Star point guard Kyrie Irving is still battling a sore left knee, but coach Brad Stevens said it's possible he could play Monday against the Pelicans. According to Wojnarowski, the surgery - to fix a torn ligament - will cause Smart to miss the rest of the regular season, but the Celtics hope he can return during the playoffs.
ESPN's Adrian Wojnarowski reports that despite the surgery, the team hopes Smart can return "sometime in the playoffs".
ESPN's Chris Forsberg added that the hope is that Smart can return to the team in six weeks, although a definitive timeline won't be available until post-surgery. The Celtics are 4.3 points per 100 possessions better this season with Smart on the court.
Moose Jaw's Marie Wright wins bronze with Canada's curling team at Paralympics
Hall won gold on Saturday through his two runs totalling one minute and 36 seconds - 39 seconds ahead of second placed Arthur Bauchet of France.
The injury occurred when Smart dove for a steal against Indiana Sunday (a game the Pacers won 99-97). A more definitive timeline for his recovery will be clear after Friday's surgery.
Smart is an incredibly valuable role player for Boston, and not having him for the entire postseason could be the difference between reaching the NBA Finals and an early exit.
While he returned to that game and even finished with 20 points, seven rebounds, and eight assists, damage was found when the injury was later examined. He'd previously lacerated his hand in a separate incident, after he struck a glass picture frame in his hotel room.