Rory McIlroy is in a tie for sixth on 7 under par, 8 shots behind leader Scottie Scheffler after round one of the PGA Tour's Tour Championship in Atlanta.
McIlroy's 67 at East Lake included an eagle, eight birdies, four bogeys and a triple bogey.
On the DP World Tour, Thriston Lawrence and Alejandro Canizares share top spot on 8 under going into round 2 of the Omega European Masters.
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Jonathan Caldwell heads the Irish contingent on 2 under par, with David Carey and James Sugrue 1 under.
