Previewing the Wimbledon 2021 Gentlemen's Singles draw section by section: quarterfinals, dark horses, upset alerts and popcorn matchups. Will Novak Djokovic make history, will Roger Federer prove you can never count him out and which of the inexperienced youngsters prove that they have the game for grass?   00:00 intro 03:23 Novak Djokovic's Quarter 13:50 Stefanos Tsitsipas's Quarter 27:20 Alexander Zverev's Quarter 37:48 Daniil Medvedev's Quarter.