David Lee (10) of the San Antonio Spurs handles the ball against the Golden State Warriors in Game Three of the Western Conference Finals of the 2017 NBA Playoffs at AT&T Center in San Antonio, Texas on May 20, 2017. [Photo/VCG]

WASHINGTON - David Lee, who helped the Golden State Warriors to the 2015 NBA title during a 12-season career, announced his retirement on Sunday.

Lee, whose fiancee is Danish tennis star Caroline Wozniacki, averaged 13.5 points and 8.8 rebounds over 829 games with New York, Golden State, Boston, Dallas and San Antonio.

"An epic night celebrating my retirement with my friends and family!" Lee posted with a group photo on Instagram. "Thank you to my amazing fianc @carowozniacki for planning the surprise!"

Former world No 1 Wozniacki had a relationship with Northern Ireland golfer Rory McIlroy, a four-time major champion, and they became engaged in January 2014 but broke up four months later.

At the time, McIlroy said he "wasn't ready for all that marriage entails".

Champion Caroline Wozniacki of Denmark poses with the Billie Jean King trophy and her boyfriend American professional basketball player David Lee after her victory against Venus Williams of the United States in the final of the BNP Paribas WTA finals in Singapore, Oct 30, 2017. [Photo/VCG]

This past Valentine's Day, Wozniacki announced she was in a relationship with Lee and the couple tweeted news of their engagement earlier this month.

Lee was a first-round pick by New York in the 2005 NBA Draft and spent five seasons with the Knicks, earning NBA All-Star honors in 2010.

He was part of a sign-and-trade deal that saw him play five seasons for Golden State.

Lee struggled with injuries in his final season for the Warriors, being replaced as a starter by Draymond Green as Golden State captured the NBA crown.

Lee was traded to Boston ahead of the 2015-16 campaign, released by the Celtics in February and signed by Dallas. After being cut by the Mavs, he played last season for San Antonio, making 79 appearances for the Spurs.

He was an unsigned free agent this season.

Agence France - presse