Murray, the Master of Shanghai!

Andy Murray maintained his perfect record at the Shanghai Masters yesterday, recovering from a deficit against unseeded Radek Stepanek to set up an Olympic re-match against Roger Federer in the semi-finals.

The US Open champion, chasing a hat-trick of titles in the eastern Chinese city, was below par in losing the first set to the dangerous Czech, ranked 41, before finding his rhythm to win 4-6, 6-2, 6-3 in two hours and 18 minutes.

Federer had an easier time, beating Marin Cilic 6-3, 6-4 while second seed Novak Djokovic cantered to a 6-3, 6-3 win over German veteran Tommy Haas and will meet Tomas Berdych in a semi-final line-up featuring the top four seeds. "It was quite a scrappy first couple of sets. Obviously the second set I managed to get a break, got a bit of momentum," said Murray.

"For me, the beginning of the third set was what was most frustrating. Then I just managed to turn it around in time," added the 25-year-old, who won in Shanghai in 2010 and 2011.u00a0"I played actually very well I thought the last 10, 15 minutes of the match."u00a0