Even if I always love to reference Diego Costa, overall, those at Chelsea must wince anytime his goalscoring numbers are put up against the current cast of attacking players.
Costa remains the recent measuring stick to judge efficient forwards at Stamford Bridge. His 40 goals across the 2014/15 and 2016/17 campaigns led to two Premier League titles. His ruthless edge was the perfect antidote to the brief post-Didier Drogba malaise.
There was hope the return of Romelu Lukaku would finally prove to be the perfect successor to emulate what Costa once produced. His injury issues and struggles to adapt to Thomas Tuchel's system have only produced more questions.
