Hingis forced to battle past Peer
The French Open is the only Grand Slam Hingis has not wonMartina Hingis overcame some stubborn resistance from Shahar Peer to reach the quarter-finals of the French Open.
Israeli Peer had levelled the match at one set all on Sunday evening before poor light caused play to be suspended.
And the 19-year-old continued to thwart 12th seed Hingis in the deciding set when play resumed on Monday.
Hingis was broken when serving for the match but finally closed out a 6-3 2-6 6-3 victory and now faces second seed Kim Clijsters for a semi-final place.
Swiss player Hingis broke Peer straight away in the third set after a 14-minute marathon game but the 31st seed responded immediately with a break of her own.
Hingis, 25, was dragged into countless long rallies but broke twice more to leave herself serving for victory against her teenage opponent, who had knocked out sixth seed Elena Dementieva in the previous round.
But Peer, who had been aiming to become the first Israeli woman to reach the quarter-finals of a Grand Slam, clawed back a break before surrendering her own serve again to allow Hingis to go through.