Defending US Open Champ Novak Djokovic Retires in 3rd Set vs. Stan Wawrinka

8:20pm PDT - September 1st, 2019    djokovic - Bleacher Report

Novak Djokovic won't defend his U.S. Open title after retiring in the third set against Stan Wawrinka, who was up 6-4, 7-5, 2-1 in the Round 4 matchup. Wawrinka needed only one break to win the first set against the No...