Federer is understandably the favourite and deservedly so. The fact that the Olympic final is contested over best of five sets gives him a huge psychological edge. Murray has beaten him plenty of times on the tour over best of three but when it comes to the full distance, the Swiss rules supreme. And both of them know that.
The best value price seems to be BetVictor
's offer of 10/3 on Federer winning in four sets, like he did in the Wimbledon final.
Murray came close at Wimbledon last month, certainly closer than the US Open and Australian Open finals of 2008 and 2010 but ultimately Federer was too good. However after Friday's semi-finals, Murray will be sniffing revenge. Federer was not at his best as Juan Martin Del Potro pushed him to the brink in the longest match in Olympic history while Murray will have drawn a huge amount of confidence from beating Novak Djokovic on such a big occasion.
And of course, he will have the crowd on his side, a factor Federer dismissed. "He got amazing crowd support in the Wimbledon final. I was able to handle that," he said. "But there's never a guarantee. I don't know how much the crowd plays in the outcome of the match. He's such a great player but I've been around as well. I think it should be a great match."