Serena Williams celebrates match point in her Ladies' Singles second round match against Kaja Juvan of Slovakia during Day 4 of The Championships - Wimbledon 2019 at All England Lawn Tennis and Croquet Club on July 4, 2019, in London.
Patrick Mouratoglou, Serena Williams' coach, says the tennis great is "pain-free" and ready to make a run for breaking the Grand Slam win record.
If she wins, that will put her number of Grand Slam titles at 24, tying the all-time grand slam win record set by Australian legend Margaret Court in 1973.
However, Williams has been beset with health issues, including a nagging knee injury that has haunted her this season.
The 49-year-old has been Williams' coach for seven years, and says chasing the Grand Slam record has kept Williams going through the pain.