The top seed dropped the opening set .
The top seed rallied to take the last two for a 4 - 6 , 6 - 3 , 6 - 4 victory , just his second win over Nadal in eight attempts .
The top seed dropped the opening set but rallied to take the last two for a 4 - 6 , 6 - 3 , 6 - 4 victory , just his second win over Nadal in eight attempts .