Tony Finau made a hole-in-one on the seventh during the Par 3 Contest on Wednesday, but then dislocated his ankle while celebrating before appearing to pop it back in place.
Finau, a 125/1 shot for The Masters this week, is now having an X-Ray and will attempt to still compete.
If you're a little squeamish, probably best to avoid watching this one...
It is understood the world number 34 required treatment following the completion of his round. He played on for two holes following the dislocation.
Finau finished the nine hole par 3 course on one-under, five shots behind the 68-year-old winner, Tom Watson.
A five-time Open champion, Watson wound back the clock to shot a six under par 21.