Shane Lowry carded an impressive 64 to lie three shots off the lead after the opening round of the RBC Canadian Open, but it was a somewhat stuttering start from Rory McIlroy who is seeking a third win in the event.
Lowry, the 2019 runner-up, posted seven birdies, with his only dropped shot of the day coming on 13. He is in a tie for fifth alongside Rasmus Højgaard and the American pair Ricky Castillo and Trey Mullinax on six under.
Leading the way on nine under are Dane Thorbjørn Olesen and Cristobal Del Solar from Chile.
Two-time champion McIlroy was far from his best when posting a one-over 71.
Starting on the back nine at TPC Toronto, he began with a couple of pars but made bogey on 12. Another…