Shane Lowry and Rory McIlroy enjoyed fine starts to the RBC Canadian Open as they finished on -3 and -4 respectively.
McIlroy was out on the course first and put together a round of 66 which included six birdies and two bogeys.
Meanwhile Lowry shot a score of 67. American Wyndham Clark leads the way on -7 after he put on a flawless display around St. George's Golf Course.
