OAKVILLE, Ont. -- Brandt Snedeker has the clubhouse lead through 54 holes at the RBC Canadian Open.
The 32-year-old American shot 63 on Saturday and sits 14 under after three rounds at Glen Abbey Golf Club.
The tournament was turned on its head earlier in the day when second-round leader Hunter Mahan abruptly withdrew after his wife went into labour with their first child.
Mahan had a two-stroke lead at 13 under through 36 holes after shooting a 67 on Thursday and a 64 on Friday.
David Lingmerth fired a 65 on Saturday and is a stroke back of Snedeker, while Matt Kuchar (64) and Jason Bohn (66) sit at 12 under.
Dustin Johnson shot 63, good for a tie for fourth at 11 under with Greg Owen (67), Charley Hoffman (67) and Kyle Stanley (66) on a day that saw scattered showers and an 80-minute weather due to lightning in the area.
Players who began their rounds early in the day benefited from calm conditions on the par-72, 7,253-yard course, including David Hearn of Brantford, Ont., who shot 68 to move to 5 under.
Mike Weir of Brights Grove, Ont., shot 73 and is 3 under, while Roger Sloan of Merritt, B.C., shot 72 and is 2 under. Ottawa's Brad Fritsch was forced to withdraw before his round with a back injury to cut the number of Canadians remaining in the field to three.