Washington Wizards President Ernie Grunfeld announced today that guard Gilbert Arenas underwent surgery on his left knee. The surgery was performed at Sibley Memorial Hospital in Washington, DC by Wizards’ team physician Dr. Marc Connell.

“I repaired a partial tear of Gilbert’s left medial meniscus,” said Connell. “In addition, he had a nonweight-bearing articular surface defect in the trochlea treated by microfracture. We are optismitic that he will be able to return to action in three months.”

“Gilbert worked extremely hard this summer to be ready for the beginning of the season,” Grunfeld said. “This is very unfortunate because he was starting to play at high level prior to the injury. We expect Gilbert to make a full recovery, and are confident that our other players will step up and help our team win.”

Arenas underwent an MRI on Wednesday morning and then had surgery later this afternoon at Sibley Memorial Hospital. Arenas will begin rehabilitation next week, and is expected to make a full recovery.

Arenas played and started in eight games this season, averaging 22.4 points, 5.9 assists and 4.4 rebounds in 39.3 minutes per game. He scored 30 and 27 points in wins against Indiana and Minnesota, respectively, but experienced some soreness and swelling in his left knee after the game against the Timberwolves. Arenas missed Washington’s last two games against Portland and Philadelphia.