Belinda Bencic stuns Coco Gauff to reach Indian Wells Masters quarter-finals

Former Olympic champion Belinda Bencic stunned third seed Coco Gauff 3-6 6-3 6-4 on Wednesday to reach the Indian Wells Masters quarter-finals.

The Swiss wildcard, who gave birth to her daughter Bella in April last year, won 69% of her first-serve points and broke the former U.S. Open champion three times during a match lasting two hours 20 minutes.

In the tightly-contested third set, it was Bencic who struck first as she came back from 0-40 down to break Gauff for a 5-4 lead and closed out the victory on her first match point when the top-ranked American ripped a forward long.

"Obviously, this is why you are practising and working hard all your life, so it's super nice to play in this kind of atmosphere," Bencic said in her on-court interview.

"The way you cheered before the match ... I had chills and goosebumps and I kind of just put the serve into the court because I was so nervous."

Coco Gauff started aggressively and committed five double faults in the first set, including three in one game, but was only broken once en route to wrapping it up in 51 minutes when Bencic sent a forward wide.

But Belinda Bencic was firing on all cylinders in the middle set and, despite twice requiring medical attention for foot and hand issues, built a 4-1 lead before securing it when Gauff returned a serve into the net.

Bencic took another medical timeout before the decider to have a hand blister tended to.

The Swiss awaits the winner of Thursday's clash between Australian Open champion Madison Keys, the fifth seed, and Croatian 19th seed Donna Vekic.

Women's top seed Aryna Sabalenka will face Britain's Sonay Kartal seeking a win that would set up a quarter-final with either Jasmine Paolini or Liudmila Samsonova.

In other early action, 11th seed Ben Shelton beat fellow American Brandon Nakashima 7-6(6) 6-1 to set up a quarter-final against third seed Taylor Fritz or Briton Jack Draper.

Men's second seed Carlos Alcaraz will kick off the evening session against Bulgarian Grigor Dimitrov for a spot in the Indian Wells quarter-finals against Argentine Francisco Cerundolo or Austrian Alex de Minaur.