The Open Championship gets underway on Thursday morning.
Greystones amateur Paul Dunne kicks off the Irish challenge at 6.43am tomorrow, with Shane Lowry next off at 7.49am.
Graeme McDowell, Darren Clarke and Padraig Harrington are also in the field.
There's no Rory McIlroy, however.
The World Number One misses out with the ankle ligament injury he picked up last week playing football with friends.
Jordan Spieth is, therefore, the star attraction at St Andrews this week.
He is the favourite to claim the Claret Jug, after his successes at The Masters and the US Open this year already.
A win this week would see him stay on course to win the Grand Slam.
And he could also overtake McIlroy as the World No 1 with victory.
Spieth says winning the Grand Slam is a sign of a true great:
Spieth’s success this year has seen him compared with the Greats of golf, like Tiger Woods.
The 21-year old says those comparisons are an honour: