COMMENT
Diego Costa's stunning finish in the 75th minute masked what was both a difficult match individually and for Chelsea, who came through 1-0 against West Brom at Stamford Bridge to enhance their title challenge.
His strike had similarities with his equaliser against Manchester City, providing relief for his team and manager when the Blues were struggling. Yet again, he came up with an outstanding piece of skill.
Antonio Conte switched formations twice before the goal came and his tinkering proved decisive. Substitute Cesc Fabregas played a ball forward from which Costa used his strength to force Gareth McAuley into an error ahead of applying a stunning finish past Ben Foster.