Emma Raducanu is now 9/2 to win the Wimbledon women's singles title after cruising into the fourth round with a 6-2 6-3 victory over Maria Sakkari.
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Blighted by injuries and falling to 135th in the world after undergoing surgery on her wrist and ankle in the last 12 months, Raducanu was one of four Grand Slam champions to have been awarded wildcards for Wimbledon.
The 21-year-old had a two-month lay-off after exiting the Madrid Open at the first hurdle in April before returning to action for the grass-court season with convincing straight-set victories over Ena Shibahara and Daria Snigur in Nottingham.
Raducanu's encouraging preparation for Wimbledon continued with wins over American duo Sloane Stephens and Jessica Pegula at Eastbourne.
Initially drawn against a formidable grass-court player in Ekaterina Alexandrova, Raducanu was somewhat fortunate that Alexandrova withdrew through illness and on her first appearance at the All England Club since 2022, she dispatched lucky loser Renata Zaruzua 7-6, 6-3 to book her place in the second round.
Mertens awaited her in what was expected to be a stern test of the Briton's credentials, and very few anticipated Raducanu to overcome her opponent so easily.
With a string of merciless forehand winners, the Belgian was put to the sword by a ruthless Raducanu. As the match clock reached 38 minutes, the Brit had wrapped up the first set in comprehensive fashion.
Raducanu didn't let up in the second set and after failing to convert four break points on Mertens' first service game, she made no mistake on the next occasion. Two breaks of serve saw her race into a 4-1 lead and Raducanu wrapped up the match in just 77 minutes.
Ninth seed Maria Sakkari was next up for the 2021 US Open champion, which coincidentally was the first meeting between the pair since Raducanu prevailed 6-1 6-4 on her way to glory at Flushing Meadows.
Raducanu came storming out of the blocks once again and delighted the Centre Court crowd once again with a superb display that saw her secure victory for the loss of just five games against another very strong opponent.
World number 123 Lulu Sun, a qualifier from New Zealand who had never won a main-draw Grand Slam match until this week, now stands in the way of Raducanu reaching a first quarter-final at SW19.
All odds displayed on this page were correct at the time of writing and are subject to withdrawal or change at any time.