Steffi Graf doesn't see anyone stopping Serena Williams from becoming the career leader in Grand Slam singles titles.
Serena earned her 17th major title at the U.S. Open this month. Graf, who won 22 titles, believes Williams will surpass leader Margaret Court at 24.
"She's got a lot of tennis left in her," Graf said. "I can easily see her pass all of our records. I don't see the competition catching up to her."
Williams is one major championship away from matching the 18 titles held by Chris Evert and Martina Navratilova. (Also read: I am not the greatest ever, says Serena)
These days, the 44-year old Graf is busy raising 11-year-old Jaden and 9-year old Jaz, who enjoy baseball and dance.
Graf attended an event in New York and promoted her foundation "Children for Tomorrow," which works with youth traumatized by war.