Manassero and Fox hold slim advantage

Italian veteran Matteo Manassero was poised to challenge for his first US PGA Tour title after conjur-ing seven birdies in a six-under par 64 to share the 54-hole lead at the Canadian Open with New Zealand's Ryan Fox.

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Fox also fired seven birdies and a bogey at TPC Toronto Osprey Valley, their 14-under par total of 196 putting the leaders one stroke clear atop a congested leaderboard, with 22 more players within four strokes of the lead.

On a day when as many as 11 players shared the lead at one point, Manassero was the first to reach 14-under with his sixth birdie of the day at the 15th.

He bogeyed 17, where he was in the left rough off the tee and missed a four-footer to save par, but he birdied the par-five 18th.