Andy Murray's winning streak came to an end when the world tennis number three slumped to a 4-6 7-6 6-4 quarter-final defeat at the Paris Masters after a three-hour tussle against the Czech Tomas Berdych.
The Scottish second seed was on a 17-match winning run, Murray just two points from victory at 5-5 in the second set tiebreak but the fifth seed Berdych kept his composure to set up a meeting with Roger Federer.
The Swiss great beat Juan Monaco 6-3 7-5.
World number four Federer found himself trailing 3-1 in the opening set but the Swiss 16-times grand slam champion reeled off five games in a row to take the lead.
He was made to wait in the second set, breaking only in the 11th game before wrapping it up with an ace.
World number one Novak Djokovic pulled out with a shoulder injury before his quarter-final match against France's Jo-Wilfried Tsonga, the sixth seed, who will take on either American John Isner or Spaniard David Ferrer.