Roger Federer says Andy Murray’s newfound ability to think more positively is part of the reason why the Scot has been so successful this season.
"I was a bit disappointed in his reaction after the [2010] Australian Open finals, when I beat him there, then he went on a bad spell I think through Rotterdam, Indian Wells, Miami. He didn't really play so well,” Federer told reporters in London. "Instead of taking positives out of a great tournament, because he was playing great tennis, he took the negatives out of it. I don't think he did that mistake again after [2012] Wimbledon. That's the sign of a champion."