AFP Sports guide to first round opponents of the leading men's contenders at the US Open, which gets underway on Monday:
Novak Djokovic (SRB x1) v Ricardas Berankis (LTU)
- World number 126 Berankis, 23, is a former junior world number one who captured the US Open junior title in 2007. But his career had been interrupted by hernia and pelvis injuries. Was first Lithuanian to reach an ATP World Tour final in Los Angeles in 2010. Made the third round of the Australian Open this year where he lost to Andy Murray.
Ryan Harrison (USA) v Rafael Nadal (ESP x2)
- 21-year-old Harrison, the world 97, has suffered because of the expectations placed upon him. He was the second youngest player in the year-end top 100 in 2011 after becoming the first American teenager to reach back-to-back semi-finals since Andy Roddick in 2002. Lost to Nadal at Indian Wells this year and has yet to get beyond the second round of the US Open.
Andy Murray (GBR x3) v Michael Llodra (FRA)
- Old school serve-and-volleyer Llodra is 33 but boasts an admirable world ranking of 48. Has lost all three career meetings with defending champion Murray, including in the second round of the US Open five years ago. Best known for his doubles successes -- he has 25 career titles -- the left-hander has twice made the fourth round at a Grand Slam, Wimbledon in 2011 and the 2008 French Open.
Roger Federer (SUI x7) v Grega Zemlja (SLO)
- World number 61 Zemlja is playing the US Open for the first time without having to qualify. In 2012, the 26-year-old made the third round of the US Open and reproduced that run at Wimbledon this season. Has lost both career meetings with Federer, including indoors at Rotterdam earlier this year.