Oklahoma City Thunder star Russell Westbrook is expected to miss the preseason after undergoing arthroscopic surgery on his right knee Wednesday.

After experiencing inflammation in his knee last weekend, the team, Westbrook and his representation determined that proactive surgery was the best option, the Thunder said in a news release.

Westbrook will be re-evaluated in four weeks, which would force him to miss the preseason. Oklahoma City’s final preseason game is Oct. 9, and its regular-season opener is Oct 16 against Golden State.

Westbrook, the 2016-17 NBA MVP, has had four surgeries on his right knee since 2013, but that has not stopped him from performing at an elite level.

He has averaged a triple-double the past two seasons, including 25.4 points, 10.3 assists and 10.1 rebounds last season, becoming the first player in NBA history to average a triple-double in multiple seasons.

This summer, Westbrook has spent time working on his game, especially three-pointers, and participating in pick-up games at UCLA where he attended college. One of those pick-up games included Westbrook, Thunder teammate Paul George, Golden State’s Kevin Durant and Houston’s James Harden with LeBron James watching from the sideline.

Westbrook also attended the start of New York Fashion Week last week, participated in USA Basketball’s mini-camp and traveled to China to promote Nike’s Jumpman sneakers and apparel.

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