Raducanu beat 19-year-old Canadian Leylah Fernandez 6-4 6-3 to become Britain’s first women’s Grand Slam singles champion since Virginia Wade at Wimbledon in 1977, and the first player to win a major after coming through a qualifying tournament.

“It’s an absolute dream. You just have visions of yourself going up to the box, hugging everyone, celebrating,” she said. “For that moment to actually happen, I’m just so grateful.”

Her childhood visions returned as her epic run pushed her to becoming the youngest Grand Slam champion in 17 years and the youngest US Open winner since 17-year-old Serena Williams in 1999.

“Going to celebrate with your team, trying to find your way up to the box, just seeing them after the match that has been playing in my head for a couple nights. I’ve fallen asleep to that,” she said.

“To have the belief I did and actually execute, winning a Grand Slam, I can’t believe it.”

Raducanu has adopted a nothing-to-lose attitude and Slam success ensures it won’t change any time soon.

“I don’t feel any pressure,” Raducanu said. “I’m still only 18 years old. I’m just having a free swing as anything that comes my way. That’s how I faced every match here in the States.

“It got me this trophy so I don’t think I should change anything.”

Raducanu never dropped more than five games in any set and that happened only once, in qualifying, although she insisted every win had its challenges.

“I faced a lot of adversity in every single one of my matches,” she said. “What I did very well in this tournament was press in the moments that I really needed to.”

While she may have faced adversity, she has not faced reality, setting aside her cell phone and the world outside to focus upon the US Open.

“I still haven’t checked my phone. I have absolutely no idea what’s going on outside of the little world that we’re in here,” Raducanu said.

“The biggest triumph for me is how I managed to just not think of absolutely anything else except for my game plan, what I’m going to execute. I just completely zoned in and focused on my craft.

“I think that’s definitely the biggest thing that’s probably helped me to win this title.”

So when it comes to things like how her US Open title will change her life, she hasn’t given it a thought. She can’t even say what’s up next week.

“I haven’t thought of any of that,” Raducanu said. “I have no idea when I’m going home. I have no idea what I’m doing tomorrow. I’m just really trying to embrace the moment, take it all in.

“I definitely think it’s the time to just switch off from any future thoughts or any plans, any schedule. I’ve got absolutely no clue. Right now, I don’t care about the world, I’m just loving life.”

Bloody good finish

After failing to convert two match points on Fernandez’s serve, Raducanu scraped her left knee sliding on the court in the final game and opened a bloody cut, forcing play to halt while a trainer bandaged the wound.

“My knee was cut pretty bad,” she said. “I didn’t actually want to stop because I thought it would disrupt my rhythm.

“But I couldn’t play on. I wasn’t allowed to because my knee was gushing with blood. The chair umpire said I needed to get it treated right away.”

She returned to face a break point in a pivotal moment, but saved it.

“Facing a breakpoint after a two-, three-minute disruption isn’t easy,” she said. “I managed for sure to really pull off the clutch plays when I needed to.”

That included match point a few moments later when she blasted her third ace.

“I don’t think I made one serve that wide in the whole match,” she said.

“I literally drove my legs up to that ball toss like never before. I landed it. (Then) just disbelief, trying to take everything in, all the moment.”