The Open Champion tees off just after 6pm Irish time.
Rory McIlroy, Shane Lowry and Graeme McDowell are in the field for the Players Championship, which starts today in Florida.
McIlroy won the tournament in 2019, and he tees off at 12.40 Irish time at Sawgrass.
Graeme McDowell is also an early starter, with Shane Lowry beginning his challenge after 6pm.
After a disappointing finish to the Arnold Palmer Invitational, McIlroy will hope to start the Championship on a better footing.
The world number 11 says he can only believe he hasn't peaked yet:
McIlroy told Tonight Show host Jimmy Fallon that Tiger Woods has been texting him from his hospital bed:
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