Wimbledon 2015 winner Serena Williams is rumored to be dating Canadian rapper Drake.

The tennis champion, who marked her 4th consecutive major title win with a 6th Wimbledon championship on Saturday, was seen "locking lips" with the rapper while in London, a source told The Sun. Apparently, the outlet's insider witnessed the pair kiss in the clubhouse right after Williams triumphed over Victoria Azarenka in the quarter finals of the prestigious tournament. 

Meanwhile, the Daily Mail reported that the rumored couple, along with another tennis player, Caroline Wozniacki, were seen on Tuesday night at Novikov Restaurant. The rapper was photographed sporting a pink long-sleeved top over pale blue jeans and light brown shoes that night while Williams wore a stylish, floral-designed coat over skinny jeans and dark-colored rubbers shoes.

More sweet sightings

The Sun also revealed that the 28-year-old music artist gave the 33-year-old tennis champ a sweet hug after Serena's press conference on July 10.

"Publicly she says they're just friends but Drake has been by Serena's side throughout the tournament and when they'€™ve been away from the public and relaxed, it's been pretty obvious that they are together," the insider told The Sun.

Rekindled romance?

Serena and Drake had a short-lived romance in 2011. The rapper even gushed about the tennis star, in an exclusive interview with Complex. He said, "I really, really love and care for Serena Williams. She’s incredible. That’s someone I’m proud to say I know. She’s definitely in my life and I’m in her life. It’s great to watch her play tennis. Very impressive."

But just about a month after his declaration of love, Drake was seen spending time with model Dollicia Bryan, and the turn of events must have hurt Serena so much.

She told Celebuzz in May 2012, "I’m a really emotional person. I give my all and everything. I do make mistakes - like every human does - but the last relationship just was too much of a heartbreak for me. I just can’t go through that anymore. It was hard."

After three years, it seems Serena and Drake are ready to give their relationship another try.