Fast, powerful, confident: The next wave of tennis greats are clawing their way up the ranks and looking to take down the sport's dominant top four.
Born: Shreveport, Louisiana
Profile: When big brother Ryan was battling Dad in the Shreveport City Tournament, nine-year-old Christian was in the stands pouring Coke on his little sister. He's since learned to pay the game some respect, competing in his first year on the pro tour and playing doubles with Ryan.
The burden of the challenger: "You can't go in thinking, 'What am I going to learn from this match?' You have to go in with the mind-set: 'I'm just going to try for every ball.' If I had that attitude when I lost, I wouldn't be able to sleep at night."
Credit: Photograph by Theo Wenner