On July 5th, 1998—exactly 25 years ago to this day—one of the biggest legends in tennis history, Serena Williams, won her first Grand Slam title of any kind, capturing the mixed doubles title at Wimbledon alongside Max Mirnyi.

They defeated Mahesh Bhupathi and Mirjana Lucic in the final, 6-4, 6-4, after Bhupathi and Lucic had taken out Venus Williams and Justin Gimelstob—who had won the first two Grand Slams of the year at the Australian Open and Roland Garros—in the semifinals.

Serena and Mirnyi would go on to win the US Open that year, too, completing a Williams family Calendar Slam in mixed doubles.

The Williams sisters even squared off against each other in the Roland Garros final, with Venus and Gimelstob defeating Serena and her first partner, Argentina’s Luis Lobo, 6-4, 6-4.

After her US Open victory, Serena was asked if she and Venus had been talking about a family Grand Slam going into the US Open.

“Yes, we were. We were talking about it ever since Wimbledon,” Serena said. “We were really working hard.”

She was also asked about the partner switch, and how she came to play with Mirnyi instead of Lobo halfway through the season.

“I just remember he came to me. I really wasn’t – Luis wasn’t there, so I wasn’t going to play with Luis,” Serena said. “I guess that was the only option available – it was a good choice.”

Serena would go on to win the US Open, also alongside Mirnyi, to complete a Williams family Calendar Slam in mixed doubles in 1998. Serena would go on to win the US Open, also alongside Mirnyi, to complete a Williams family Calendar Slam in mixed doubles in 1998.

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Serena would go on to win a total of 39 Grand Slam titles in her career in singles, doubles and mixed doubles combined.

Her 23 career majors in singles included seven Australian Opens, three Roland Garros titles, seven Wimbledons and six US Opens.

Her 14 career majors in women’s doubles, all with Venus, included four Australian Opens, two Roland Garros titles, six Wimbledons and two US Opens.

And then her two majors in mixed doubles, both with Mirnyi in 1998, at Wimbledon and the US Open.

Serena is tied for third-most total Grand Slam titles for a woman in tennis history across all three disciplines—Margaret Court had a total of 64, Martina Navratilova 59 and Billie Jean King 39 as well.