CNN reports that Williams overtook Danka Kovinic 6-3, 6-3 at the U.S. Open on Aug. 29. On Aug. 31, Williams will play Anett Kontaveit, who is ranked No. 2 in the world. That same day, Williams will kick off doubles play with her sister, Venus. That same day, Williams will kick off doubles play with her sister, Venus. The match against Kovinic was Williams' third appearance since announcing she'll "evolve away from tennis". "I have never liked the word retirement. It doesn't feel like a modern word to me." Serena Williams, via statement.