Melbourne, Australia - Nine-time Grand Slam winner Serena Williams snapped a three-match loss streak to Elena Dementieva as she knocked the Russian out 6-3,
6-4 in the semi-finals of the Australian Open on Thursday.
Dementieva, the fourth-seeded Olympic champion, has now exited the discussion for possibly taking over the top spot.
It was her first loss of the season after winning her first 15 matches, including titles in Auckland and Sydney.