Jankovic routs tired Wozniacki, into Doha semis

Jelena Jankovic advanced to the semifinals of the Sony Ericsson Championships on Friday after routing a tired Caroline Wozniacki 6-2, 6-2 in the last group-stage round. The former top-ranked Serb broke twice in the first set and then raced out to a 4-0 lead in the second. Wozniacki won two grueling three-set matches on Wednesday and Thursday and looked like she had simply run out of energy in the hot weather, often a step slow and failing to chase down balls she would normally get to.