Andre Roberson, the defensive stalwart of the Oklahoma City Thunder, recently underwent arthroscopic surgery on his left knee.

As reported by Royce Young of ESPN, the surgery was done to address the swelling from a previous injury.

Roberson sustained the patella injury on January 27 in a game against the Detroit Pistons. He went under the knife the following day and was subsequently ruled out of the season. In 39 games, Roberson logged in five points, 4.7 rebounds, 1.2 assists, and 1.2 steals per game.

After the injury, head coach Billy Donovan said, per NBA.com:

“He's certainly a huge loss,” Donovan said, “and I think everybody's been able to see that since he's … come back to us and the way he's (played) defensively. You play 82 games, there's gonna be guys that are gonna be in and out and different guys will have to step up in his absence.”

Earlier this month, Roberson gave an update on his injury, noting that he's enjoying every part of the recovery process. Per Cody Taylor of Thunder Wire, the 26-year-old said:

“One of my favorite things to do is run,” Roberson said. “As you guys probably saw, I just started stairs. Getting better with that; getting my quad back. Atrophy is an MF’er. It’s good. It’s a process and I’m enjoying every bit of it.”

He also gave his long-term goals. He wants to improve his jump shot and also be a vocal leader for the Thunder:

“I do a lot of form shooting,” Roberson said. “Right now, it’s more of a period of mental state. I have been talking with a lot of guys in terms of how to approach things, staying positive and just becoming a vocal leader – some things I’ve been shy to [do].”