The 36-year-old took some time to get up to speed, but overcame Arantxa Rus of the Netherlands 7-5 6-3 in her quest for an eighth Wimbledon title.
While some athletes have to deal with streakers and other pitch invaders of the human variety, the world's number two tennis player had to endure a different distraction at Wimbledon. "I felt good, less nervous than in the first round", Federer said. "Mommy has to do this.' I cried a little bit not as much as I thought I would". Not wasting too much energy in the first matches is nice to have.
It means the eight-time champion has racked up 27 consecutive sets at SW19 in a run of nine successive wins over the last two years.
Querrey's fellow American Madison Keys, seeded 10th, celebrated U.S. Independence Day with a 6-4, 6-3 win against Thailand's Luksika Kumkhum.
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Venus reached her ninth Wimbledon final past year, but the American star was denied a sixth title by Garbine Muguruza.
Oh, and as a fitting final piece of her empire, she's also a familiar face in the entertainment industry, scoring gigs like her high-profile cameo in Beyonce's "Sorry" music video and guest roles in My Wife and Kids, ER, Law & Order: SVU, and Drop Dead Diva.
Williams used a powerful serve to win 84% of her first serves and 71% of her second serves to put the match away.
Reigning badass boss Serena Williams has been a professional tennis champ for almost 23 years, earning 39 (!) Grand Slam titles throughout her impressive career.
Her last major title came at the 2017 Australian Open when she played while in the early stages of her pregnancy.