Follow our analysis and reactions from day eight at Wimbledon as Jannik Sinner and Novak Djokovic moved into the quarterfinals

Dimitrov was playing fantastic tennis, running Sinner around the court and delivering booming serves. Dimitrov won the first set 6-3 and survived a hard-charging comeback attempt from the Italian in the second to take the set 7-5 and put the world No. 1 in a desperate position.

No. 1 Janik Sinner advanced to the Wimbledon quarterfinals Monday after his opponent, Grigor Dimitrov, retired injured while he was leading their fourth-round match two sets to love.