Shane Lowry is the best placed Irish player after round one of the Memorial Tournament on the PGA Tour in Ohio.
The Offalyman is 3 under par following a 69 at Muirfield Village.
American Davis Riley leads on 5 under.
Seamus Power is 2 under with Rory McIlroy level par.
McIlroy's round was going nicely before he took a triple bogey at the last hole.
Stephanie Meadow lies in a tie for third on 4 under par after round one of the Americas Open on the LPGA Tour in New Jersey.
American Lauren Hartlage leads on 7 under, with Leona Maguire 1 under par.