Henrik Stenson and Phil Mickelson have been battling in one of the greatest golf duels in history today at Royal Troon.
It's been like watching two prize fighters go at it.
But after this amazing 51-foot birdie putt that Stenson walked in on the 15th hole to take a two-shot lead with three to play, it appears the 145th Open Championship is now his to lose.
Check out the putt:
From this angle, you can see that he walked it in well before it came within a sniff of the hole:
Just add it to the list of remarkable shots in this final round. It's a shame someone is going to lose.