Analyse @Tennis's tweets
World No. 2 Rafael Nadal is into the quarterfinals of the #AusOpen after a 6-0, 6-1, 7-6 (4) win over Tomas Berdych. Nadal cruised through the first two sets, but Berdych made it interesting in the third. Rafa will likely be happy to have been tested at least a little. https://t.co/ChWp4Spwej