There'll be a British man in the Australian Open semifinals for the seventh time in nine years.
She is the late match on Rod Laver Arena against Dutch 30th seed Kiki Bertens and will be looking to reassert herself.
After breaking Dimitrov's serve in the ninth game of the fourth set, Edmund set up match point with an ace.
"I mean, what they achieved was unbelievable, and of course I looked up to them", Mertens said.
The victor of five WTA titles previous year, more than any other player, Svitolina opened 2018 by winning the title at Brisbane.
"When you're on these types of stages, reaching the last stages of the best tournaments in the world, it's very pleasing".
"Going into the tournament, I had a few issues with my health".
Murray reached five Australian Open finals, but has never won the title at Melbourne Park.
"I'm without words, I don't know what to say. We want it to stay an outdoor event as long as possible but at the same time ensuring that the health and wellbeing of players is taken care of".
Mertens becomes the first Belgian woman since Kim Clijsters in 2012 to reach the last four at Melbourne Park.
Svitolina, who extended her winning streak to eight matches with a quickfire 6-3 6-0 fourth-round victory over Czech qualifier Denisa Allertova in the early hours of Monday, easily beat Mertens in the final in Istanbul past year on clay.
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"If you believe in yourself, then anything can happen", she said. "But of course semis is 'wow'". "I felt that I played all four matches on a good quality".
"I'm trying to be in your footsteps this week".
Like Mertens, she came into the Open on the back of a tournament win, having taken out the crown in Brisbane.
"She's definitely got a bright future", said Svitolina, adding: "It's very special for me to get past the third round". She's a great mover, a really strong player. 'I was not ready to produce a good level of tennis. But she went on an incredible run over the next 12 months.
"Now she's in semifinal".
Mertens, 22, trains with her coach and boyfriend Robbe Ceyssens at the Kim Clijsters Academy in Belgium and has seen her world ranking rise from 127 at the end of 2016.
In other news, No 32-seeded Mischa Zverev was fined $45,000 for a poor performance in his first-round match against Hyeon Chung. It's also Rafa's first meeting with a Top 20 player in a Slam since the French Open!
Since almost being eliminated in the second round by Jana Fett - Wozniacki trailed 5-1 in the third set before winning the last six games - she has won her next two matches in straight sets. His fine of $45,000 almost equals his first-round prize money of 60,000 Australian dollars ($47,900).
Fourth-round singles play began Sunday, with third-seeded Grigor Dimitrov facing local hope Nick Kyrgios in a marquee night matchup.
Mertens beat fourth-seeded Elina Svitolina in straight sets earlier Tuesday. Safely in the main draw for this year's Australian Open, Mertens returned to Hobart - and won the title again.