Jankovic and Venus reach Bangalore quarters

By Sanjay Rajan

BANGALORE (Reuters) - Serbian world number four Jelena Jankovic and American second seed Venus Williams entered the quarter-finals of the Bangalore Open in contrasting style on Thursday.

While top seed Jankovic was clinical in her 6-2 6-2 demolition of Croat Sanda Mamic, world number seven Williams stumbled past China's Peng Shuai in three sets, committing 15 double faults.

Jankovic, semi-finalist at the Australian Open in January, broke her left-handed opponent in the fifth and seventh games of the opening set after the two had traded early breaks.

The powerful Serbian broke Mamic, who is returning after a career-threatening injury, in the fifth and seventh games of the second set as well to close out the match.

Jankovic, who was given a first round bye, said the extra bounce on the courts was causing problems.

"You have to put a lot of spin on the ball," she told a news conference. "If I hit flat, the ball goes way out.

"You need to play a completely different game (on these courts). I guess it is the same for everybody."

Jankovic will meet China's Yan Zi next.