Now, after weeks of training and rehab Kyrgios says it’s “back to the drawing board” for him and his team.

Q. Sorry to see that. You were really emotional on the court. Sort of curious is what’s going through your mind at that point…?

NICK KYRGIOS: It’s just more so I guess the amount of work I’ve put in to get back, and just to know… There are glimpses of some really good tennis that I can still play.

I guess this process has been probably one of the biggest challenges I’ve faced in my life. Reality, it’s not too bad, but for my tennis career, it’s by far the biggest.

Yeah, just the amount of work that goes in when I go back home or when I’m not playing, it’s not fun. I know that I can’t really be doing any more to try and get back and play…

That’s I guess why I got a bit emotional towards the end because it’s one of my favorite tournaments… I love it here. I’ve had so many good memories here. It’s one of the best tournaments we have.

After Australian Open, all I did was rehab, train, and then try and get ready for this tournament. I was two days out of the tournament here and I was having a great training session, and literally the second-to-last point in my training session I hit a forehand, I felt a sharp pain, and I had to stop playing.

I mean, it’s not ideal, but I guess, I don’t know… We go back to the drawing board as a team, and we just try and figure out and navigate a way to just get through these matches.