Wozniacki vows to move on after engagement heartache

Tennis player Caroline Wozniacki of Denmark (L) works as the caddie for her boyfriend, Northern Ireland's Rory McIlroy, during the Par 3 Contest ahead of the Masters golf tournament at the Augusta National Golf Club in Augusta, Georgia April 9, 2014. REUTERS/Mike Segar

PARIS (Reuters) - Caroline Wozniacki's return to tennis and the public eye after her breakup with golfer Rory McIlroy ended in more pain on Tuesday when the 13th seed was knocked out in the French Open first round by Yanina Wickmayer.

The 23-year-old Dane vowed to move on in her life after Wickmayer won a high-quality baseline battle 7-6(5) 4-6 6-2, condemning Wozniacki to her first opening round defeat at Roland Garros since her debut in 2007.