The nine-time champion suffered an injury to his left wrist.
World No. 2 makes it look easy lobbing 6'11" Karlovic.
Alize Cornet won a three-set thriller over Tatjana Maria and the two had words when it was over.
"(Goffin) has an opportunity to be in a very high position of the rankings," says Nadal.
Bag Man lays it on the line in stumbling net collision.
"What's most disappointing is my game feels good," says Bouchard after losing 10 straight games and the match.
From one Roland Garros legend to another...
