After a stunning result against world No. 7 Andrey Rublev, wildcard Nick Kyrgios summed up what all tennis fans have come to know: “I can lose to anyone on any given day, and I can beat anyone. It’s the story of my career.”

Kyrgios loves playing big players on big courts, and on Stadium at the Miami Open, he breezed by Rublev, 6-3, 6-0, in 51 minutes.

In the beginning, Rublev, an aggressive baseliner, one of the hardest hitters on tour, seemed full of confidence and desire. He broke early, leading 2-1 in the first set.

Kyrgios seemed to lack energy. He looked like he might be hurt, grabbing his knee with a grimace. But then the Australian broke back and dominated. He played with power and feel, not giving the fifth-seeded Russian any rhythm. Most noticeably, Kyrgios stepped way in on the return, discombobulating Rublev.

PHOTO: AFP

In his post-match press conference, an easy-going Krygios said: “I think obviously the way tennis is scored and how quick momentum can change, I was in a bit of trouble early and then, I don’t know, I felt like I just played the right way.

“He doesn’t have a great second serve, and I thought I just played up in the court, I returned really well. I guess when I got that break in the first set, my shoulders opened up a little bit and everything was clicking today.

“I mean, I know I’m capable of that. Obviously, it’s not going to happen every day. It’s not realistic to have the tennis you’re going to play every day of the week.

“You know, I take it as it comes. I know in this sport that you can have a great day, and then you come out the next day and it’s not so good. You try and ride the waves.

“Obviously I’m extremely happy. Obviously always happy when you play like that, but I know that things can change very quickly. So, I’m just going to—you know, it’s just another win for me or another loss. I just take it as it comes.”

Kyrgios explained: “I feel like I’m at that point in my life where, yeah, I’m at peace with everything off the court, and I guess I’m just in the right mindset, you know. Look, it’s just one match. I’m not going to say like anything crazy, because, you know, I played my first round, I was very lucky to get through. Played a hell of an opponent.”

Next up for Kyrgios is Italian Fabio Fognini.

“Yeah, it’s a tricky one,” Kyrgios said. “Definitely probably two of the most unpredictable players on tour. But I played him once. Actually, played him in Miami once. I kind of know what his game style is, and I had some success against him.

“I’m not going to think about that. I don’t think I play tomorrow. I’ve got doubles tomorrow, so I’ll just focus on that. Yeah, I mean, looking forward to it.”