Williams and Azarenka reach final
Top two seeds Serena Williams and Victoria Azarenka will meet in the final of the WTA Western & Southern Open in Cincinnati after battling to victories in their semi-finals.
Williams came out on top in a topsy-turvy encounter with defending champion Li Na, eventually sealing a 7-5 7-5 win.
Li won four straight games to lead 5-4 in the first but double-faulted at set point to let Williams back in.
The fifth seed served the second set as well, having been a break down, but again Williams got the break back and went on to seal the match.
Williams told wtatennis.com: "Whenever I'm down I just get really relaxed. I was just thinking, 'You know Serena, just try to do your best, and just try to do what you can'."
Azarenka meanwhile came from a set down to beat Jelena Jankovic 4-6 6-2 6-3.
Azarenka has only beaten Williams twice in 14 attempts, although one of those was earlier this year on a hardcourt in Doha.