Serena Williams overcame illness to win her 20th grand slam title after beating Lucie Safarova in the French Open final on this day in 2015.

The American, who won her first major 16 years previously, beat Safarova 6-3 6-7 (2) 6-2 in a dramatic showdown at Roland Garros.

Williams, 33 at the time, was the clear favourite as the world number one and reigning US Open and Australian Open champion, but she had been struggling with illness prior to the final and revealed she almost withdrew from the match.

And she was then given a fright by Safarova, who was playing in her first grand slam final in the French capital.

Williams won the first set 6-3 and looked to be heading for a routine victory when she led 4-1 in the second.

However, the left-handed Safarova battled back to force a second-set tie-break, which she won comprehensively.

A major shock was on the cards when Safarova led 2-0 in the decider, only for Williams to show her prowess by winning six successive games and claim a third French Open title.

Williams said after the match: “Is it the most difficult grand slam I’ve ever won? For sure.

“When you have the flu your whole body aches. That’s kind of what I have been dealing with.

“Even now I just really don’t have any energy and I just want to go to bed.

“It’s been a nightmare 48 hours.”

She added: “I talked to all the doctors here and the physios here. I even told the physio, ‘I’m not sure I’m going to be able to play because this is just not looking good’.

It was her 20th grand slam singles title, which left her two behind Steffi Graf and four behind Margaret Court.

Williams went on to take her tally to 23, but history continued to elude her as she lost her last four grand slam finals, two at Wimbledon and two in the US Open.

In August 2022, Williams announced her impending “evolution” away from professional tennis and played what was expected to be her final match at the 2022 US Open.

Williams announced she is pregnant with her second child in May this year.