Published 01/01/2014 | 02:30
Rory and Caroline. Inset: The image posted on Twitter of the engagement ring
GOLFER Rory McIlroy and tennis star Caroline Wozniacki last night took to Twitter to tell their millions of followers they are engaged.
In almost simultanous posts on the social network, the pair, who are ringing in the New Year in Australia, tweeted pictures of a diamond engagement ring on Wozniacki's finger alongside a picture of fireworks over Sydney Harbour Bridge.
The star couple have a combined following of more than two million people on Twitter and have frequently used the social media website to have fun with their followers. Announcing the engagement, the Northern Irish golfer and current world number six told his followers : "Happy New Year everyone! I have a feeling it's going to be a great year!! My first victory of 2014 #shesaidyes!!"
Danish tennis player Wozniacki (23) -- also in her sport's top 10 -- tweeted the same pictures and a message saying: "Rory and I started 2014 with a bang!...I said YES!!!!"
The duo started dating in the summer of 2011.
Rory McIlroy and Caroline Wozniacki
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
Rory McIlroy of Northern Ireland and Caroline Wozniacki of Denmark attend the US Golf Writers Dinner on April 10, 2013 in Augusta, Georgia
Caroline Wozniacki of Denmark is seen wearing her engagement ring from Rory McIlroy as she speaks to media during day two of the Sydney International at Sydney Olympic Park Tennis Centre on January 6, 2014 in Sydney, Australia. (Photo by Joosep Martinson/Getty Images)
Rory McIlroy and Caroline Wozniacki
Rory McIlroy of Northern Ireland talks to his fiance Caroline Wozniacki of Denmark, after coming joint second after the final round of the Abu Dhabi HSBC Golf Championship at Abu Dhabi Golf Club on January 19, 2014 in Abu Dhabi, United Arab Emirates. (Photo by Matthew Lewis/Getty Images)
Rory McIlroy and Caroline Wozniacki attend the Dubai Duty Free Race Day at Newbury Racecourse on April 20, 2012 in Newbury, England. (Photo by Indigo/Getty Images)
Rory McIlroy and Caroline Wozniacki at a friend’s wedding
Rory McIlroy and Caroline Wozniacki are sighted at the Sony Tennis Open 2013 at Crandon Park Tennis Center on March 19, 2013 in Key Biscayne, Florida. (Photo by Uri Schanker/FilmMagic)
Rory McIlroy and Caroline Wozniacki arrives at Sony Open Player Party 2013 at JW Marriott Marquis on March 19, 2013 in Miami, Florida. (Photo by Gustavo Caballero/Getty Images)
Caroline Wozniacki and Rory McIlroy attend the 2012 US Open party hosted by Poland's Consul General at Beaux Arts De Lamar Mansion on August 25, 2012 in New York City. (Photo by Charles Norfleet/Getty Images)
Chatting casually as Rory plays.
Rory McIlroy and Caroline Wozniacki during day one of the Turkish Airlines World Golf Final.
Rory McIlroy with his girlfriend Caroline Wozniacki at an Ulster rugby match at Ravenhill.
Rory McIlroy with girlfriend Caroline Wozniacki. Photo: Getty Images
Golfer Rory McIlroy with former girlfriend and world number one tennis player Caroline
Wozniacki of Denmark.
Rory and Caroline visit Sydney together. (Twitter: Caroline Wozniacki)
The couple enjoying heights in Australia. (Twitter: Caroline Wozniacki)
Caroline does her best 'Rory' impression. (Twitter: Caroline Wozniacki)
Eating breakfast in New York, the Twitter photo that confirmed their relationship was still on during the summer. (Twitter: Caroline Wozniacki)
Caroline Wozniacki Party - Copenhagen...Rory McIlroy in Denmark to support Caroline Wozniacki at her home tournament, the e-Boks Open. Caroline Wozniacki and her family hosted a party at Zen nightclub in Copenhagen, Monday April 9th, 2012. Rory and Caroline arrive at Zen. PHOTOGRAPHER ANTHON UNGER / POLFOTO...E
When questioned about marriage plans Caroline once said: 'I think that question will be for him to answer.'
Rory McIlroy stands with his caddie, and girlfriend, Caroline Wozniacki. Photo: Getty Images
Rory McIlroy with girlfriend Caroline Wozniacki
Rory McIlroy and girlfriend Caroline Wozniacki