Nadal advances in Brasil Open

Rafael Nadal’s knees were given a stern test as he was pushed all the way by Argentina’s Carlos Berlocq before booking his place in the semi-finals of the Brasil Open.

The Spaniard, in his second tournament back after a lengthy period out through injury, eventually prevailed 3-6 6-4 6-4 on the Sao Paulo clay in two hours and 24 minutes.