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Serena Williams, left, and Venus Williams celebrate their women's doubles championship at Wimbledon in 2016.Tim Ireland/The Associated Press

Even at a combined age of 90, opponents should still be wary of facing the Williams sisters at Wimbledon.

Serena and Venus Williams won a combined 21 titles on the grass of the All England Club in their singles and doubles careers and now they’re going for one more.

A doubles wild card invitation for the sisters was announced on Tuesday by organizers of Wimbledon, which starts in less than two weeks.

The move comes after 44-year-old Serena recently returned to competition after nearly four years away from professional tennis.

Venus, who has still been competing sporadically, turns 46 on Wednesday.

“I think it’s going to be fun. My daughter, Olympia, told me I should play with Venus. She’s always right,” Serena said after losing a doubles match with another partner, Karolina Muchova, in Berlin on Tuesday. “So I said, ‘Okay, Olympia, we’ll see if we can do it.’”

The sisters have won 14 Grand Slam titles together in doubles, including six at Wimbledon – the first of them in 2000 and the last in 2016. Their first two doubles titles at Wimbledon, in 2000 and 2002, came as wild cards.

In all, their records at the All England Club look like this: seven singles titles for Serena and five singles titles for Venus at Wimbledon; those six Wimbledon doubles titles together; a mixed doubles title for Serena with Max Mirnyi at Wimbledon in 1998; plus a singles gold medal for Serena at the 2012 London Olympics and a doubles gold for the sisters at the same Games. Count ‘em up and it makes for 21 trophies and medals – because their powerful serves always did more damage on grass than any other surface.

With their six titles, the Williams sisters share the record for most trophies as a pair in women’s doubles at Wimbledon with Suzanne Lenglen and Elizabeth Ryan, who won five consecutive titles from 1919 to 1923 and a sixth in in 1925.

The Williams sisters last played doubles together at the 2022 U.S. Open, where they lost their opening match. That was the first time they played doubles together in 4 1/2 years.

In her first competition since 2022, Serena won her doubles match with partner Victoria Mboko at Queen’s Club in London last week and then the pair had to withdraw after Mboko injured her knee in a singles match.

At the Berlin Open on Tuesday, Serena and Muchova were beaten 6-4, 6-4 by Giuliana Olmos and Erin Routliffe.

Serena has not ruled out a return in singles, too, and one of the eight wild card spots for women’s singles was left as “to be announced.”

Recent French Open finalist Maja Chwalinska received a singles wild card, as did six British women: Harriet Dart, Alicia Dudeney, Hannah Klugman, Mika Stojsavljevic, Katie Swan, and Mimi Xu.

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