The Offaly man is just three shots off the lead after the opening round.
Shane Lowry is three shots off the lead after the opening round at the PGA Tour's Canadian Open.
The Offaly man carded is the best of the Irish so far after an opening round of 64 last night and is six-under-par, having shot seven birdies and one bogey.
Lowry is schedulded to get his second round underway at 12:40pm.
That's three shots adrift of the leaders Thorbjorn Olesen and Cristobal Del Solar who both finished with an opening round of 61.
Rory McIlroy is one-over, while Seamus Power was forced to withdraw after nine holes due to injury.
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