Andy Murray focused on US Open

Andy Murray says he is focused on the US Open after winning the Cincinnati Masters.

The world number four was leading Novak Djokovic 6-4 3-0 in the Ohio final, before the Serb was forced to retire with a shoulder injury.

"I can't wait to get started there," said Murray. "It's my favourite tournament.

"I want to bring my A game and I will make a few small changes. Playing in the heat of the day takes its toll a bit but I will taper it off this week."

The US Open begins on Monday, August 29.