Ivo Karlovic served up 29 aces en route to beating Yen-Hsun Lu, 3-6,7-6,6-4 to make it to the semifinals. Ivo served 2 double faults in the 8th game for Lu to break and then hold serve to close out the 1st set. Lu appeared to start picking up Karlovic's serve in the 2nd and forced it to a tie breaker, with no breaks of serve in the 2nd. In the 3rd set, 5th game, Lu faulted 3 of 5 first serves and Karlovic broke. Karlovic served 8 straight aces to win the 8th game and the final 10th game, not allowing Lu any points in Karlovic's last 2 service games.
good luck against Benneteau!