Tatum undergoes Achilles surgery: When Jayson Tatum toppled to the court, writhing in pain and grabbing at his right foot late in the Celtics’ Eastern Conference semifinals Game 4 loss to the Knicks, it looked like a potentially season-altering injury.

The Celtics’ worst fears are now confirmed.

Tatum had surgery Tuesday to repair a ruptured right Achilles tendon that will sideline him for the remainder of the playoffs, the team announced.

The Celtics provided details on the extent of Tatum’s injury and announced news of the surgery a day after the six-time All-Star went down in the Celtics’ 121-113 loss to the Knicks on Monday night at Madison Square Garden in New York.

It puts the hopes of the defending champions repeating and Tatum’s playing status for next season in doubt.

They did not give a timetable for his return, but said a full recovery was expected.

Wolves in control: Anthony Edwards scored 30 points for his second straight 30-point performance, Julius Randle had 31 points and the sixth-seeded Timberwolves beat the seventh-seeded Warriors 117-110 on Monday in San Francisco for a 3-1 lead in their Western Conference semifinal series.

Now, it’s back home to Minneapolis for the Wolves with a chance to book a trip to the West final in Game 5 on Wednesday.

The Warriors will still be without star Stephen Curry, who sat out his third game in a row and is scheduled to have his strained left hamstring re-evaluated that day.

— Associated Press