World No. 1 Serena Williams overcame physical problems as well as emotional distress to beat Jelena Jankovic 6-4, 2-6, 6-4 to reach the WTA Championships final in Istanbul.
According to Sport24, Serena also committed 40 unforced errors and hit 40 winners, and allowed a 5-1 final set lead to evaporate to within one point of 5-5 before finishing the match with three trademark heavy blows. She said after the match that she was relieved and just glad to be in the final.
Meanwhile, Li Na also reached the final after beating Petra Kvitova 6-4, 6-2.