Emma Raducanu slipped on the grass at Andy Murray Arena, fell hard on her left thigh, and then got up to beat Kamilla Rakhimova 6-3 7-5 in a quarter-final that tested everything except her resolve. The British number one's path to the Queen's Club semi-finals in London came with a physical price—a mid-match injury scare that could have derailed her week entirely, but instead seemed to sharpen her focus when it mattered most.

At the highest level of professional tennis, momentum is currency, and Raducanu had been spending freely. After claiming her first win against a top-20 opponent in over a year on Friday—defeating Romanian world number 18 Sorana Cirstea—she arrived for Saturday's quarter-final as one half of a historic moment for British tennis. Katie Boulter had already secured her place in the semi-finals, and if Raducanu could get past Rakhimova, two British women would meet on the same day in the final four of a major grass-court tournament.

The match unfolded with the kind of unpredictability that makes tennis compelling. Raducanu lost her serve early, dropping the third game. She seemed to be finding her rhythm in the first set when she powered through to take it 6-3, helped along by one of the week's strangest interruptions: military aircraft conducting the King's Trooping the Colour flypast over west London forced her to delay her serve multiple times as the Red Arrows flew overhead. Once the jets passed, she wrapped up the service game and swept the rest of the set.

The second set is where the fall came. Attempting to change direction on grass—a surface that demands precision footwork and punishes careless movement—Raducanu went down. She limped off court for medical treatment, returning with her left thigh strapped and wrapped, visibly compromised but determined. Rakhimova, sensing vulnerability, fought back hard. Raducanu lost her momentum along with her serve, and suddenly the Russian-born Uzbek opponent had genuine hope.

What followed was a masterclass in adversity management. With her coaching team offering loud encouragement from the sidelines, Raducanu dug in. She broke Rakhimova's serve to lead 5-4, but couldn't close it out on her own serve as her opponent refused to fold. The Briton had to break her again, finally converting her third match point to secure the semi-final spot.

"It was really tricky, she played some incredible tennis and got a lot of balls back," Raducanu told BBC Television afterward, her gratitude palpable. "It was tough to take the fall, I was in a good spot in the match and I found it tough to regroup, but I am proud how I did that with the help of you guys here. It's incredible for British tennis to have two semi-finalists and is a great achievement."

The 23-year-old will face American teenager Iva Jovic later on Saturday for a place in Sunday's final, while Boulter takes on Croatia's Donna Vekic. Remarkably, Raducanu has yet to lose a set in the tournament, though she now faces the prospect of winning two matches in a single day to reach the final. The injury that threatened to break her week instead seems to have tempered her, focused her, reminded her what she's capable of when things get difficult.