Federer and Nadal both played great matches, actually. I wasn't expecting that from either of them, but Federer absolutely comprehensively dismantled Berdych and his movement was absolutely great. Almost all of Federer's decline is down to being half a step slower, I think - if anything, his quality of shot and serve are better than ever when he has time on the ball - but especially his backhand requires an agility of step he lost a little. That really wasn't showing. I think Nadal is my quiet favourite to make the final from his side of the draw, certainly - Raonic-Nadal is the key match there. As for Federer, well, Nishikori will be difficult, but I'm not making any definite predictions.