MARSEILLE, France (AP) Top-seeded Stan Wawrinka lost to eighth-seeded Benoit Paire of France 6-4, 1-6, 7-5 in the quarterfinals of the Open 13 on Friday.
Paire had 12 aces against the 2014 Australian Open champion, and next meets fourth-seeded Marin Cilic, who reached his first semifinal of the season by beating Russian Andrey Kuznetsov 6-3, 6-4.
''I was very emotional at the end of the match, it's the kind of victory that does me a lot of good,'' Paire said. ''I've already beaten Cilic. If I serve well and I have the right sensations, I have enough to get through.''
Second-seeded Tomas Berdych also reached the last four, beating No. 6 David Goffin of Belgium 6-3, 6-4.
The Czech player faces unseeded Nick Kyrgios in the last four after the Australian swept aside No. 3 Richard Gasquet of France 6-0, 6-4.
Big-serving Kyrgios had 17 aces and did not concede a single break-point chance on his serve, hitting three aces in his final service game.
The 20-year-old, who is ranked 41st, dropped only two points on his serve in the second set, racking up a perfect 100 percent of points on his first serve and smacking three aces in the final service game.
''He played like a top-10 player for sure,'' Gasquet said. ''He'll get there one day, there's no doubt about that.''