DIEGO COSTA FIRED Chelsea to another late victory as the Spain striker secured a 2-1 win at Watford just days after his last-gasp heroics saw off West Ham United.
Watford boss Walter Mazzarri and Chelsea manager Antonio Conte fell out during their time coaching Napoli and Juventus respectively and it was the Blues chief who had the last laugh in their first meeting in England.
Etienne Capoue broke the deadlock in the 55th minute when Watford’s French midfielder lashed his shot into the top corner from Adlene Guedioura’s cross.
But Chelsea striker Michy Batshuayi came off the bench to equalise in the 80th minute after Heurelho Gomes weakly parried Eden Hazard’s shot.
Batshuayi’s first goal since his pre-season move from Marseille sparked Chelsea into life and Costa, fortunate to still be on the pitch after controversially avoiding a second booking for diving, rifled in from a Cesc Fabregas assist in the 87th minute.