Big weekend for tennis superstar Caroline Wozniacki ... who tied the knot with ex-NBA star David Lee in Italy -- in front of a TON of huge athletes ... including Serena Williams.
It all went down Saturday at the fancy Castiglion del Bosco Hotel in Tuscany -- the same place where Justin Verlander wifed up Kate Upton in 2017.
Caroline -- the #14 ranked singles player in the world -- wore a custom Oscar De La Renta wedding gown and custom Jimmy Choo heels. Her father walked her down the aisle.
The guest list for the Wozniacki/Lee bash was pretty amazing -- Serena was a bridesmaid and her husband, Alexis Ohanian, was there.
Best weekend of my life ❤️ pic.twitter.com/4RcowKAIGb
Other huge stars in attendance included NBA stars like Pau Gasol and Harrison Barnes, ex-NFL quarterback Jesse Palmer and tennis stars Angelique Kerber, Agnieszka Radwańska and Urszula Radwańska.
The party looked pretty incredible ... with dancing, photo booths and fireworks.
The couple met around 3-and-a-half years ago -- after Caroline's breakup with golf superstar Rory McIlroy. Lee proposed about 2 years later ... with an 8.88 carat diamond ring because 8 is Caro's "lucky number."
Congrats!