Shane Lowry will be in stellar company as he gets his Open Championship defence underway on Thursday.
Lowry will be joined by US Open champion Jon Rahm and former major winner Louis Oosthuizen at Royal St. Georges with the trio set to tee it up just before 10 am.
Among the other Irish in contention, Padraig Harrington will be joined by Brad Kennedy and Sam Forgan while Rory McIlroy has Patrick Reed and Cameron Smith for company in a late afternoon start.
Elsewhere, 2011 Open champion Darren Clarke will look to reclaim the claret jug a decade later as he tees off at 8.25 am.
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
