Oklahoma City Thunder forward Paul George underwent rotator cuff surgery to repair a partially torn tendon in his right shoulder on Tuesday, the team announced.

George initially suffered the injury to his right shoulder against the Denver Nuggets on Feb. 26 and had been dealing with it off and on over the final two months of the season.

He pushed off surgery until the offseason to address the issue.

George is also expected to have a procedure to address a small labrum tear in his left shoulder in the coming weeks. The two injuries hampered George in the final weeks of the season.

While the Thunder did not provide an official timetable for George to return, ESPN’s Adrian Wojnarowski reported that George is expected to miss the start of training camp following the two procedures.

The start of training camp is typically at the end of September, which would be just under five months since George had his first procedure. The team has not set a definite date for his second shoulder surgery.

As NBA players in the past have shown, recovery time from shoulder surgery that severe can often take several months. Of course, most players have just one shoulder injury but George is dealing with two different injuries so his timetable may be a bit different than other players.

With George set to miss the next several months, we took a look at how other NBA players have recovered from rotator cuff surgery and how they performed once they did return.

Patty Mills, San Antonio Spurs: July 2, 2014

Fresh off of a magnificent performance in the 2014 NBA Finals with the Spurs, Mills underwent surgery just as he was set to hit free agency that summer.

Much like George, Mills decided to play through the pain throughout the 2013-14 season and his decision to do so paid off for the Spurs as they would go on to win the NBA championship.

Mills initially received a 6-7 month window to return and would eventually return to the court on Dec. 28, 2014. In total, it took Mills nearly six months to return to play for the Spurs since the surgery.

In 51 games during the 2014-15 season, Mills averaged 6.9 points and 1.7 assists off of the bench with the Spurs. Since his injury, Mills has improved his production in nearly every season and hasn’t suffered any shoulder issues since.

Mills averaged 9.9 points this season in 82 games this season for the Spurs.