Boston Celtics point guard Kyrie Irving is expected to miss 3-6 weeks after undergoing knee surgery Saturday, the team announced.

Irving had a tension wire removed from his left knee.

"The wire was originally placed as part of the surgical repair of a fractured patella sustained during the 2015 NBA Finals, the Celtics said in a statement. "While removal of the wire should relieve irritation it was causing in Irving's patellar tendon, the fractured patella has fully healed and Irving's knee has been found to be completely structurally sound."

The 5-time All-Star is done for the remainder of the regular season. If he is able to return to basketball activities in three weeks, it's possible he could play in Boston's first-round playoff series.

Irving has not played since March 11, when his sore knee forced him to sit out the second half of a 99-97 loss to the Indiana Pacers.

Yahoo! Sports' Shams Charania reported Tuesday that Irving would get a second opinion on the injury after showing a "lack of progress." On Friday, the team announced that he would undergo a "minimally invasive" procedure.