John Isner better than Karlovic: he is the player who hit most aces ... - Tennis World

Tennis World
John Isner better than Karlovic: he is the player who hit most aces ...
Tennis World
The World No. 19 John Isner ended the 2016 season without any title but this year he hit more aces than anybody else (1159), overcoming his "rival" Ivo Karlovic ...and more »