Mitch Marner stuck twice an added an assist as the London Knights beat Owen Sound 5-1 to take a 2-1 series lead in Round One of the OHL playoffs.
The Attack's Damir Sharipzyanov scored late in the first to put Owen Sound up 1-0 going into the second.
Matthew Tkachuck scored his first of the game just under four minutes into the second. Aaron Berisha put the Knights up 2-1 with a goal at 16:18. Marner increased the Knights lead with his first goal of the game just over minute later.
Marner scored just 10 seconds into the third to put the Knights up 4-1. Tkachuck had his second of the game at 8:23.
Michael McNiven faced 41 shots for the Attack. Tyler Parsons made 38 saves for the Knights.
Game Four goes Wednesday night in Owen Sound.