Born: Vilnius, Lithuania
Profile: At 5-foot-9, Berankis has a well-rounded game, with a wide array of shots, a fantastic return, and a reputation for guts and determination in key moments. When he was 16, he lost in the qualifying match for the U.S. Open juniors; the following year he won without dropping a set.
What opponents fear: "I never give up. I fight till the end."