Who are the three players ahead of her , and who 's she just 10 weeks away from ?
Serena Williams has become the fourth player in WTA history to hit 250 weeks at World No. 1 .
Who are the three players ahead of Serena Williams , and who 's Serena Williams just 10 weeks away from ?
Serena Williams has become the fourth player in WTA history to hit 250 weeks at World No. 1 .