Rumours swirl that the Rory McIlroy and Caroline Wozniacki romance is over Rory McIlroy of Northern Ireland with his girlfriend Caroline Wozniacki of Denmark the World's Number One female tennis player during his practice round as a preview for the 2012 Omega Dubai Desert Classic on the Majilis Course at the Emirates Golf Club on February 7, 2012 in Dubai, United Arab Emirates. (Photo by David Cannon/Getty Images) Source: News Limited THEIR Twitter feeds have been crammed with photos of each other for the last few years but now one of the most high profile romances in sport is over. Sources close to 24-year-old golfing prodigy Rory McIlroy have told the UK Telegraph that his relationship with tennis star Caroline Wozniacki, 23, is done. The Danish star, who once described McIlroy as her "ideal boyfriend," is said to be "absolutely devastated" by the split. Rory McIlroy of Northern Ireland speaks with his girlfriend Caroline Wozniacki of Denmark, the World's Number One female tennis player during day one of the Turkish Airlines World Golf Final at Antalya GC on October 9, 2012 in Antalya, Turkey. (Photo by Warren Little/Getty Images) Source: Supplied McIlroy is one of golf's most high profile stars but has struggled with form recently. As with so many sports stars before him, people have been quick to blame the slump in his game on his relationship. Former golfing great Gary Player recently said: "If you're a young man like Rory, you can't play with worries. You can't have managerial problems, you can't have women problems. You've got to be out there and have a free mind. Seems McIlroy took the advice to heart. Sports power couple Caroline Wozniacki (tennis) and Rory McIlroy (golf) arrive in Sydney ahead of Caroline's appearance at the Sydney International tennis tournament.