Chelsea boss Rafa Benitez hit back at fans after their 2-2 draw at FA Cup opponents Brentford.Fernando Torres' 82nd-minute equaliser failed to spare Benitez another ear-bashing from angry Blues fans who chanted "You don't know what you're doing" at their interim boss.

But defiant Benitez said: "I guarantee that sending on Juan Mata and changing the game showed we do know what we are doing.

"It is a transition period at the club. They wanted a manager with experience and I will try to do my best."