Roger Federer knocked out of Wimbledon

Question

Roger Federer has been knocked out of Wimbledon in the quarter-finals, with Tomas Berdych claiming the upset victory over the defending champion after turning in a performance that suggests he's about to realise what has long been recognised as his not inconsiderable potential.

The full match report is available at http://blogs.bettor.com/Roger-Federer-suffers-shock-Wimbledon-loss-to-Tomas-Berdych-a14344