Williams made quick work of Arantxa Rus.
No. 25 ranked Serena Williams advanced to the second round of Wimbledon on Monday, defeating Arantxa Rus in straight sets, 7-5, 6-3.
The American served five aces and secured four break points on her way to the next round. She will play either Viktoriya Tomova or Tereza Smitkova on Wednesday.
After a rocky start to the second set that saw her down three games to one, Williams rallied for five straight games and finished by serving for the match.
The 36-year-old is one of the most accomplished female tennis players of all-time, winning 23 Grand Slam titles including seven at Wimbledon.
Williams last won in London in 2016 and will look to get back on top this year.