Only No. 1 Simona Halep, who plays her third-round match Saturday, and No. 7 Karolina Pliskova, a 3-6, 7-6 (3), 6-1 victor against No. 29 Mihaela Buzarnescu - are still around from the top 10.
Serena was in dominant mood on Centre Court, brushing aside Tomova in just 66 minutes with 24 winners and four aces to extend her streak of consecutive match wins at the All England Club.
He added: "Last time we watched Federer, and we really, really enjoyed that - to see him play was fantastic and it will be nice to watch him again".
Fifth seed Juan Martin del Potro thumped Spaniard Feliciano Lopez 6-4 6-1 6-2 in 95 minutes to move into the third round.
United States' 11th seed Sam Querrey also progressed with a 7-6, 6-3, 6-3 victory over Sergiy Stakhovsky of Ukraine.
Federer did not face a single break point, hitting 48 winners, dropping only nine points on his serve all match and winning 35 points in a row on serve in the final set. "It will be much more of a strategic match, I believe, the way Mannarino plays", Federer said.
Her elder sister Venus Williams won her match, as well, after coming back to beat Romanian qualifier Alexandra Dulgheru 4-6, 6-0, 6-1.
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Wozniacki's exit means only world number one Simona Halep, defending champion Garbine Muguruza and seventh seed Karolina Pliskova remain from the top eight in the women's draw. This is only the fourth tournament of her return after giving birth last September. Williams had only played three tournaments before this one since becoming a mother, but the seven-time champion played as if she were nearly annoyed she wasn't considered the favorite this year.
While Federer and Serena strolled, Caroline Wozniacki suffered fresh Wimbledon woe as the world number two suffered a shock 6-4, 1-6, 7-5 defeat against Ekaterina Makarova. "I expected more from the team", Federer, who has given Switzerland plenty to cheer about as he collected 20 Grand Slam titles over the past 15 years, told reporters at Wimbledon on Wednesday.
Flying ants threatend to disrupt the action for some players, notably Caroline Wozniacki.
To the tune of 23 Grand Slam singles championships.
Milos Raonic in a match with John Millman had to play three tie-break games.
"I always have this sort of dream, I just want to walk past them and speak to these people to hear their stories". I knew he had the rhythm and I knew I had to put him away.
"Ideally it's two sets", Venus said. I thought I did very well today.