Kevin Durant worked so hard to get back into the Golden State Warriors' lineup.
But after playing 11 minutes and 57 seconds in Game 5 of the NBA Finals against the Raptors, Durant re-injured his lower right leg Monday night, and will undergo an MRI on Tuesday.
The Warriors didn't specifically say that Durant hurt his calf again, but based on video replays, it appears the muscle popped.
You can watch the video here.
Former NFL team doctor David Chao had a more grim outlook.
49ers cornerback Richard Sherman also believed Durant suffered an Achilles injury.
Durant was seen leaving Scotiabank Arena on crutches and with a boot on his right foot.
[RELATED: NBA player hold breath on KD's injury]
Despite the injury, Durant was effective during his time on the court, as he finished with 11 points on 3-of-5 shooting, including 3 of 3 from deep.