AN ankle injury forced world tennis No 1 Rafael Nadal to lose against Andy Murray at the World Indoor Tournament in Rotterdam, Netherlands last week. The injury also forced him to withdraw from the Dubai Tennis Championships. Murray has beaten Nadal in their last three meetings, and the Spaniard admits the Scot might replace him as the world's best player. "He is No 4 in the world now and he can be better. Sure, he is good and he can be No 1, No 2, No 3 – I don’t think it will be a problem," Nadal said.