Masters 2014: Caroline Wozniacki caddies for boyfriend Rory McIlroy

Rory McIlroy has tennis star fiancee Caroline Wozniacki acting as his caddie at the Masters par-three event for the second year in succession.

The couple announced their engagement over the New Year period and Wozniacki, 23, showed off her ring at Augusta on Wednesday.

"I needed to play well at the end of the year [to pay for it]," joked McIlroy, 24.

"We're working on it," added Wozniacki when asked about the wedding date.

The Danish former world number one will cheer on McIlroy throughout this week's event in Georgia.