Nick Kyrgios admits he felt he had wasted his window as he reaches his first grand slam semi-final 

Nick Kyrgios admitted that he had missed his opportunity, as he reached his first-ever grand slam semi-finals after steaming past Cristian Garin in straight sets.

The controversial Australian, whose antics this fortnight have thrilled and appalled in equal measure, reached the last four at Wimbledon with a commanding 6-4 6-3 7-6 (5) victory. 

Kyrgios, now 27, has long been regarded as having all the talent to win major tournaments, but almost none of the application.

Nick Kyrgios reached his first-ever grand slam semi-finals after steaming past Cristian Garin

The controversial Australian admitted that he felt he had missed his window for success

But after cruising past Garin – and armed with a 2-0 winning record over most likely final opponent Novak Djokovic – the self-styled bad boy of tennis might finally be about to come good.

Kyrgios, speaking on the court after his win: ‘An amazing atmosphere again. I never thought I’d be in the semi-final of a Grand Slam. I thought that ship had sailed – that I may have wasted that window in my career.

‘I’m really happy I was able to come out here with my team and put on a performance.’

The world No 13 hit back at comments that he doesn’t care because he has never had a coach

People often criticise Kyrgios for not caring because he doesn’t have a coach, and never has had a full-time coach in his career, but he hit back at those remarks after his impressive victory.  

‘I don’t have a coach I would never put that burden on someone! Each and every one of my team plays a very important role.

‘No-one knows my tennis more than I do, I’ve been playing this sport since I was seven and I’m very happy.

The Australian was also full of praise for his quarter-final opponent Cristian Garin (pictured)

Kyrgios also revealed that there is plenty of work to do ahead of his semi-final match

‘I felt I was playing on the back foot a lot. Garin’s a hell of a player. I got lucky on a couple of break points so I’ll take that and will prepare for my next match.’

Kyrgios also revealed that there is plenty of work to be done, but first he go recover, and then prepare for his semi-final match. 

‘There’s a lot to be done, go back, dad will cook us dinner as always, we’ll eat it and just chill out.’