Alexander Zverev beats Pablo Carreño Busta in US Open semi-final – as it happened

“I was actually looking at my scoreboard when I was down two sets to love. I was like, I can’t believe it. I’m playing in the semi-final, I’m supposed to be the favourite and I’m down two sets to love, I’m playing that bad. I knew that I had to come up with better tennis and I knew that I had to be more stable.”