Karlovic hits 61 aces to set new US Open record
Croatia's Ivo Karlovic shattered the US Open aces' match record during his five-set first round win over Taiwan's Yen-Hsun Lu on Tuesday. Karlovic hit a total of 61 aces, surpassing the previous record of 49, set by Richard Krajicek in 1999. Karlovic is the leading ace-hitter with 11,277 career aces so far, 1,196 aces ahead of second-placed compatriot Goran Ivanisevic.