Emma Raducanu made a statement at the Miami Open, shocking No. 8 seed Emma Navarro in the second round. The Brit sparked concern when she called the physio to treat her blisters. But she bounced back, earning the third top-10 win of her career and the first outside of a grass court in a rollercoaster match as she beat Navarro 7-6(6) 2-6 7-6(3) in the battle of the Emmas.

Raducanu’s big win comes after she parted ways with trial coach Vladimir Platenik, claiming their partnership wasn’t “quite going in the right direction”. The world No. 60 has since been spotted training with Mark Petchey in Miami, and he was in her box for Friday’s match. But he is understood to be helping out as a familiar face.

The British No. 2 had never won a match at the Miami Open before this week, losing in her two previous appearances in 2022 and 2023. But she finally scored a victory over teenage wildcard Sayaka Ishii in the first round on Wednesday, setting up a meeting with Navarro.

Raducanu was excited about the prospect of facing the eighth seed. “I think it’s a match where she’s probably in better form, so I think I can just go out and try and express myself and compete for every point,” the 22-year-old told Sky Sports earlier this week.

The former US Open champion did that early in their second-round meeting. The Emmas traded breaks midway through the first set before the close contest went to a tiebreak.

Raducanu saved two set points in the breaker and locked in, raising her level to win the last four points in a row.

But Navarro’s experience showed in the second set – she upped her intensity and raced into a double-break lead, looking much fresher than Raducanu as she closed out the second set to force a decider.

The world No. 60 called the physio to the court ahead of the final set, having both of her feet taped up while Petchey shouted advice from her box. But nothing seemed to help – Raducanu was broken in the first game of the decider.

The Brit survived a tough fifth game in the final set, saving two break points. It gave Raducanu a boost – she kicked into life and ripped some huge returns down the court before breaking Navarro to get back on serve.

Raducanu kept on rolling, breaking Navarro again to reel off her fourth straight game after looking down and out at 1-3. There were some nerves from the Brit as she stepped up to serve for the match – the errors crept in, and she was broken.

The rollercoaster continued as the eighth seed dug herself out of a 0-30 hole to draw ahead. Raducanu was under more pressure at 5-5, and she hit a costly double fault to allow Navarro to serve for it.

But the twists kept coming – the British No. 2 broke again to force a tiebreak, a fitting end for the topsy-turvy contest.

Raducanu raced into a 5-2 lead in the decisive tiebreak and only needed one match point to get the job done, ripping a winner across the court after two hours and 53 minutes before putting her hands to her head in delight.

The 23-year-old raced over to her box to high-five her team, including her old mentor, Petchey. The retired British player-turned-coach and pundit previously worked with Raducanu briefly ahead of her breakout summer in 2021.

Ahead of Raducanu’s second-round match, another British coach suggested that Petchey was a great short-term solution for the world No. 60 but questioned whether they’d form a proper partnership.

Jamie Delgado – who currently works with Grigor Dimitrov and previously coached Andy Murray – told Sky Sports: “She’ll be after someone with that consistency and that familiarity.

“In the long term, I don’t know, with his commitments, with TV, he’s obviously busy as well. It’s something that’s worked for her in the past and I think in the short term, it could help her this week.”

Raducanu also has her long-time mentor Jane O’Donoghue, who she sees as a “big sister”, with her in Miami this week.