Grigor Dimitrov was forced to retire from his Wimbledon fourth-round clash with Jannik Sinner on Monday after suffering a partial tear of his pectoral muscle

Grigor Dimitrov was in full control on Monday with a chance for one of the biggest upsets at Wimbledon. But a pectoral injury ended his day early, and he was forced to retire while holding a two-set lead over No.

The 34-year-old Bulgarian won the first two sets 6-3, 7-5 and was tied with Sinner 2-2 in the third when he went down with the injury.