As of 2018, Williams has earned an estimated $85 million in prize money-which, of course, is not the extent of her earnings.
Serena Williams powered to her 16th successive win at Wimbledon as the seven-time champion routed Bulgarian qualifier Viktoriya Tomova 6-1, 6-4. Federer also commented on how he felt during his first round match win against the Serb Dusan Lajovic, playing as first on Centre Court: 'It was good.
"It's not easy to play someone you haven't played, and I'm sure she's seen me play a lot, so she was extremely competitive", she added.
In total, the eight-time champion lost only nine of 61 points on his serve and broke Lacko five times, including with a forehand victor to close out the match.
"It was better than the first round".
However, Wozniacki still can't seem to get comfortable at the All England Club - especially when there's a swarm of bugs flying around her head. In addition to actual tennis play, the 36-year-old profits from numerous endorsement deals, which have included Nike, Gatorade, Delta Air Lines, Aston Martin, Pepsi, Beats by Dre, OPI, IBM, and Chase Bank.
Five-time champion Venus Williams battled into the third round with a 4-6, 6-0, 6-1 win over Romanian qualifier Alexandra Dulgheru.
The 20-time Grand Slam champion, who has not dropped a set since the 2016 semi-finals, will have his returning game tested by a player whom he defeated 6-4 6-4 7-6 at this year's Australian Open.
"I think I did everything I could", Wozniacki said. Venus reached her ninth Wimbledon final a year ago, but the American star was denied a sixth title by Garbine Muguruza. The older sister, Venus, is 38.
"But I told myself "no, you are not going to lose this match". If that's your best or not doesn't matter".
Karolina Pliskova avoided an early exit against two-time Wimbledon semi-finalist Victoria Azarenka.
Russian world number 35 Makarova faces Czech world number 66 Lucie Safarova in the third round.