Zverev lost track of the score as he prepared to receive serve rather than celebrating the second grand slam title of his career Key points and original sources are listed below.

• Zverev lost track of the score as he prepared to receive serve rather than celebrating the second grand slam title of his careerS1S2

• Alexander Zverev doesn't realise he has won the US Open... and then he does.S3S4

• Alexander Zverev won the US Open and didn't even realise!S8