Chelsea produced a much improved display to secure a 3-1 victory over Aston Villa and advance to the fifth round of the FA Cup.
Conor Gallagher set the visitors on their way by scoring his first goal of the season, producing a fine finish following Noni Madueke's pass.
The Blues lead was doubled by Nicolas Jackson as the forward guided in a cross from the impressive Malo Gusto.
Enzo Fernandez then scored the pick of the goals with his curling free kick finding the top corner, before substitute Moussa Diaby pulled one back for Aston Villa in stoppage time.