Australian John Millman has caused the biggest upset of his career to reach his first top-tier ATP Tour semi-finals.
Millman shocked world No.15 Richard Gasquet in the quarter-finals of the Winston-Salem Open 7-5 6-3 in North Carolina on Thursday (Friday AEST).
The win against the No.1 seed is Millman's highest-ever ranked scalp and comes just days out from the US Open.
He will now face Spaniard Pablo Carreno Busta in the semi-final after he beat Andrey Kuznetsov 6-3 6-2.
"It's been real great to play here all week, it hasn't been easy," Millman said.
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"Richard is a great player and he makes you work so hard for every point."
The pair traded breaks of serve throughout the first set before Millman produced a risk-free brand of tennis in the second to take out the match.
Struggling in the hotter conditions, the 28-year-old also took the unusual step of calling for a soft drink during the match for hydration.
"I just needed a little bit of boost and that was Pepsi to give me that ride," he said.
"It's been a long few weeks. I was at the Rio Olympics and that physically was really tough.
"You're buzzing every day to represent your country there and then Cincinnati I played four matches there and long days with the rain."
Millman has reached 12 second-tier ATP Challengers finals, winning eight titles.
Meanwhile Viktor Troicki and Roberto Bautista Agut will meet in the other semi-final.
Troicki came back from being a break down in the third set against Fernando Verdasco to progress 6-4 3-6 6-4, while Bautista Agut easily disposed of Yen-Hsun Lu 6-3 6-2.
