The Offaly man tees off at 10:09am.
The first round is underway at the 2025 Open Championship at Portrush.
Three-time major champion Padraig Harrington opened with a birdie after hitting the first shot of the tournament, but he's slipped back to one-over with bogeys on the second and fourth holes.
Offaly's Shane Lowry tees off at 10:09am alongside Colin Morikawa and Scottie Scheffler, while 2014 champion Rory McIlroy begins at 3.10pm alongside Justin Thomas and Tommy Fleetwood.
Lowry says his preparation for the tournament has been good:
Coverage with thanks to Keenan Bauer Motors Mullingar - Your home for Citroen and Honda in the Midlands - Keenanbauer.com
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