Andy Murray celebrated his new position as world number two by lifting his fourth Masters title at the Rogers Cup in Montreal on Sunday.

The Scot overtook Spain's Rafael Nadal after his semi-final victory in Montreal against Jo-Wilfried Tsonga.

And Murray continued his fine form on the US hard courts with a battling three-set win over Argentina's Juan Martin Del Potro, eventually coming through 6-7, 7-6, 6-1.

World number six Del Potro was in red-hot form himself, having won in Washington last week, and proved too much for Murray in the first set tie-break, winning it 7-4.

But Murray rates the hard courts as his favourite surface and showed why in the next two sets, breaking the Argentine's serve four times en route to victory.

The Scot now has a couple of days rest before the Cincinnati Masters next week - a tournament Murray won last season before reaching his first Grand Slam final at the US Open final two weeks after.