Novak Djokovic urged to retire after pulling out of French Open injured
Novak Djokovic has been urged to retire by Express Sport readers after pulling out of the French Open ahead of his quarter-final showdown with Casper Ruud. The 37-year-old aggravated a knee issue during his five-set thriller with Francisco Cerundolo in the last 16 after being forced to play until 3.07am.Djokovic is one of the greatest…