Nadal was playing his first match since losing to Dustin Brown in the second round of Wimbledon. The former No. 1 in the world has fallen to No. 10.
In the all-Spanish match, Nadal appeared to have trouble adjusting to clay and finding his timing. But his game picked up noticeably in the last two sets. Verdasco saved one match point but then hit the net with a backhand to hand Nadal the win.
The match was played under the court's canvas cover because of rain.