Rory McIlroy will be hoping he can copy the success of fellow countryman Darren Clarke as he gets his Open championship under way on Thursday.
in 2011, Darren Clarke at the age of 42, won the Open at Royal St George's but McIlroy will need to be in better form to reach the same heights after a disappointing Irish Open.
McIlroy has Patrick Reed and Cameron Smith for company in a late afternoon start.
Meanwhile Clarke tees off at 8.25am alongside Bernd Wiesberger and x-j Long.
Shane Lowry will be out to retain his Open crown and will be joined by US Open champion Jon Rahm and former major winner Louis Oosthuizen with the trio set to tee it up at 9.58am.
Ireland's Padraig Harrington will be joined by Brad Kennedy and Sam Forgan.
Here's a look at some of the noteworthy groups that will be out on the fairways on Thursday:
Noteworthy tee times
08.03am: Brooks Koepka, Jason Kokrak, Garrick Higgo
09.25am: Jordan Spieth, Bryson DeChambeau, Branden Grace
09.58am: Shane Lowry, Jon Rahm, Louis Oosthuizen
10.20am: Dustin Johnson, Will Zalatoris, Justin Rose
12.42pm: Padraig Harrington, Brad Kennedy, Sam Forgan
2.48pm: Phil Mickelson, Tyrrell Hatton, Kevin Kisner
2.59pm: Xander Schauffele, Robert MacIntyre, Rickie Fowler
3.10pm: Justin Thomas, Tommy Fleetwood, Adam Scott
3.21pm: Rory McIlroy, Patrick Reed, Cameron Smith
