Earlier this morning, Oklahoma City Thunder star Russell Westbrook went under the knife for arthroscopic surgery on his right knee. The operation will put him out for the entire NBA preseason, and he might even miss the first few games of the regular season.

In four weeks he will be re-evaluated, right in time for the tip-off matchup of the Thunder versus Golden State. While there’s no rush to get him back as soon as possible, it’s obvious the former league MVP is a difference maker.

Over the past week, Westbrook reportedly suffered from knee stiffness. He decided to undergo a normal scope surgery now, with the purpose of avoiding any injuries later in the season.

It’s been almost five years since he’s had any knee issues, going all the way back to the 2013 playoffs that led to a trio of surgeries in less than a year.

Now 29 years old, the point guard has been named an All-Star seven times, a member of the All-NBA Second Team five times, and a member of the All-NBA First Team twice. He’s also made history a multitude of times, becoming the only player other than Oscar Robertson to average a triple-double over a season and the only ever to do it twice.