Nadal out with knee injury and Murray advances

I was awaiting the quarterfinal match to be a exhibition of two awesome players, unfortunate to see it end with an injury early exit. According to Nadal, Andy was playing some 'unbelievable tennis' and it was good to see some powerful points. It will be interesting to see what Andy Murray does with the win and if he can carry it through his next match. The tournament is gaining momentum and we should see some great semi final matches.