It looks like it's a two-horse race at Royal Troon, as Henrik Stenson and Phil Mickelson battle it out to become the 145th Open Champion. 

Mickelson is looking to win for the second time at golf's oldest major, while Stenson is looking for his first win in one of golf's biggest tournaments. The man who Mickelson beat in 2013 to win The Open? Henrik Stenson.

It's going to be an interesting day.