Huge upsets as Kyle Edmund and Elise Mertens make Australian Open semis

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Melbourne: Unseeded Kyle Edmund and Elise Mertens pulled off huge upsets to march into uncharted territory at the Australian Open on Tuesday (Jan 23) as they swept into the semi-finals.

Briton Edmund stunned third seed Grigor Dimitrov 6-4, 3-6, 6-3, 6-4 on Rod Laver Arena to set up last-four clash with either world No. 1 Rafael Nadal or former US Open champion Marin Cilic, who play later.

Mertens, who is yet to drop a set, was equally convincing in blasting past world No. 4 Elina Svitolina 6-4, 6-0 to become the first Belgian to get so far since Kim Clijsters in 2012.

Her win sets up a battle to reach the final with either second-seeded Dane Caroline Wozniacki or veteran Spaniard Carla Suarez Navarro.

Bulgaria's Dimitrov had beaten Edmund only two weeks ago in the quarter-finals at the Brisbane International, but there was no repeat.

"It's an amazing feeling. I'm very happy," said an overwhelmed Edmund, ranked No. 49 and in his first semi-final at a Major.

"It was a hard match and I'm really trying to enjoy the moment. It was my first match on Rod Laver Arena and it's very special."

The 23-year-old is the only British man in the draw after Andy Murray's injury withdrawal before the tournament, raising the prospect that it will be him, rather than the Scot, who breaks through to win in Australia.

Murray has been a five-time finalist, but lost them all.

World No. 37 Mertens is on a hot streak of form, unbeaten in 10 matches after winning in Hobart this month.

She was too physical for Svitolina as she stormed into the semis, incredibly on her Australian Open debut.

"It's amazing. I mean, it was not expected, especially today. Really tough match," she said. "But I was in the zone today. If you believe in yourself, then anything can happen. But of course semis is 'wow'."

Svitolina blamed a hip injury for her shock ousting as she again failed to get to the last four of a Grand Slam on her 22nd attempt.

"It was my hip. I started to feel it actually after the final in Brisbane," she said, referring to the warm-up tournament she won. "It's been there all the time. I had pain all the time. But with painkillers, it was fine."