Be calm, be aggressive: How Ayush Shetty took down reigning champion Shi Yu Qi in BWF World Championships opener

Ayush Shetty beats top seed Shi Yu Qi at the BWF World Championships in New Delhi on Monday. AP Photo/Manish Swarup

Be calm. Be aggressive.

Ayush Shetty, 21, was making his debut at the World Championships in the toughest possible conditions -- playing the world no. 1 and defending champion Shi Yu Qi in the first round at home. The crowd was with him, but so was the pressure.

Be calm.

He was playing some of the most fluid badminton of his career and got close to the finish line with five match points. And then he lost the next four points with a mix of errors and Shi's resurgence. 20-19.

Be aggressive.

He had only one match point now. With a flick winner, he stunned the top seed. At the end, he was almost relieved, his celebration far too causal for the magnitude of his win. He raised his arms, hugged his coaches, clapped for the crowd, rewarded one lucky fan with a shuttle, as he pulled off one of the great World Championships upsets. The score read 21-14, 13-21, 21-19.

"I was telling myself to calm down. I was getting a bit nervous because he was really catching up and the momentum was with him. So, I was just telling myself to calm down, and be aggressive," Ayush told reporters after.

Being calm and aggressive together is the balancing act that sets apart the elitest of athletes. At only 21, Ayush managed to find this balance in a match tested every badminton instinct -- racquet skills and nerves, attack and defence, dealing with the lopsided drift and pressure. And on every badminton metric, the Indian emerged victorious.

In the span of 73 minutes, Ayush grew from new hope to home hero in a match that will go down in Indian badminton lore.

The draw, on paper, was a tough one. Shi had not come to the pre-tournament media day, but Ayush had and confidently claimed that he was mentally and tactically prepared to take on the biggest challenge of his young career so far. He wore his underdog status so determinedly, that one couldn't help but marvel at the fearlessness of youth. "It [was] a great match and [on] home soil, playing against world number one... It [was] a really great opportunity for me. We had a solid game plan and somehow managed to pull it off."

He was warming up with sprints as Sindhu was playing on court. He entered to loud cheers of 'India, India' -- his 6'4 height imposing across the net. The imposition continued as Shi started shaky while Ayush looked immensely composed and built a 5-point lead with the vociferous crowd supporting the home player unabashedly -- stomping feet, clanging plastic clappers, even cheering Shi's errors.

Starting on the faster side of the court, Ayush's overheads and smashes blunted Shi's defence and as his big smashes landed, he grew more confident and had a whopping 11-5 lead at the interval.

The Indian was creating variations to trouble Shi -- soft kills at the net, booming overheads, nifty flicks, flexible retrievals. Shi's body language was drooping and by the time Ayush clinched the opening game 21-14, cheers resounded all through the stadium. "Whenever I was getting caught, I was doing the high lift and ready for the defence. I think that managed to work really well and I think I was defending quite well as well."

From the other side, though, Shi found his range again even as Ayush raged against the drift and small deficit. One particular point here was a microcosm of his game -- at 6-5 Ayush showed terrific defense and transitioned that to attack to finish a point which was fought on all corners of the court.

Still, there was a decider to be played because the world champion would no go out without a fight. Playing from the faster end of the court, Shi rediscovered his touch but and despite Ayush's fight, Shi eventually won the second game 13-21.

In the third game, with the drift and the metaphorical wind beneath his wings, Ayush found his tall smashes again and got a big lead... which swelled to a massive 10-point one as a flustered Shi started spraying errors all across the back court in a role reversal of nerves.

And then came the final act of the ultimate drama.

Ayush needed a break at 17-9 to get his right leg looked at by the medical team. That was all Shi needed to come back, the comfortable cushion now reduced, a run of five points that got Shi so close to the comeback. And then Ayush landed a smash timely for match points - five match points should be enough, even if the 10-point lead wasn't right?

Shi saved four of those. Body smash after long rally, another body smash, Ayush fluffling at the net, and then again.

For the first time this match, Ayush looked like he was suffering from nerves. The crowd clapped to lift him up, he had one final shot. He didn't miss as Ayush sealed an absolute thriller on his fifth match point in one of the best matches of his short career and it could come at no better place.

After the match, the outgoing champion was effusive in his praise for young Ayush. He told reporters that Ayush had changed up his game from the Badminton Asia Championships final (which Shi had dominated), and that the Indian was tactically astute.

Ayush has already done the implausible, taking down the defending world champion in the very first round, stunning the badminton world, mastering the balancing act of staying calm while being aggressive... and now, as the draw opens up, the possibilities are endless.