Ivan Ljubičić
The Croatian tennis star who won the Davis Cup in 2005 now lives in Monaco after he retired from pro tennis in April 2012. With 10 career titles and his highest ranking of world number 3 in 2006, it’s no surprise that he was capable of serving a pacey 233 km/h (145 mph) at the 2007 Pacific Life Open.
Caroline Garcia
The French-born tennis star turned heads in 2011 when she went pro. She really made an impression when she slammed a serve that would rank her as the fifth fastest server in women’s tennis. At a speed of 203.0 km/h (126.1 mph), she tied with German player, Julia Görges.