Ireland's Shane Lowry will tee off alongside world number three Jordan Spieth and former US Open champion Justin Rose at the 145th Open Championship at Royal Troon on Thursday.
Lowry held a four-shot lead going into the final round of the US Open last month before he shot a closing 76 to finish three shots behind eventual winner Dustin Johnson.
Johnson, the hottest player in the game after winning the US Open and the WGC-Bridgestone Invitational in Ohio eight days ago, tees off with German Martin Kaymer and Russell Knox of Scotland.
2014 champion Rory McIlroy - ruled out last year by an ankle injury - will play the first two rounds alongside Japan's Hideki Matsuyama and two-time Masters winner Bubba Watson.
Two-time Open winner Padraig Harrington is alongside Jamie Donaldson and Louis Oosthuizen, while Paul Dunne will be in the group behind Harrington with Scott Piercy and Jamie Lovemark after he successfully came through a qualifying tournament.
Darren Clarke, who famously lifted the Claret Jug in 2011, will be one of the early risers as he tees off alongside Jim Furyk and Thorbjorn Olesen at 7:41am.
Graeme McDowell is in one of the afternoon groups, going out with Matt Kuchar and Andrew Johnston at 1:15pm.
Masters champion Danny Willett, who was sixth last year, tees off at 9:25am with Rickie Fowler and world number one Jason Day, who missed out on the three-man play-off at St Andrews 12 months ago by a single shot.
The last three Open champions at Troon - Todd Hamilton, Justin Leonard and Mark Calcavecchia - tee off together at 12:31pm, with defending champion Zach Johnson, Adam Scott and Henrik Stenson out at 2:15pm.
Colin Montgomerie, an honorary member of Royal Troon who knows the links course inside out, has been granted the honour of hitting the first shot.
The 53-year-old Scot, who had to pre-qualify for the third major championship of the year, will tee off at 6.35am in the opening round after being paired in Monday's draw with Australian Marc Leishman and England's Luke Donald.
