US Open: Alexander Zverev after Jack Sock gave up in the second round

Alexander Zverev is the third German after Peter Gojowczyk and Oscar Otte to move into the round of 16 of the US Open 2021. Zverev led against Jack Sock from the USA 3: 6, 6: 2, 6: 3 and 2: 1. Then the local hero had to give up.

© Getty Images