Chelsea had to fight tirelessly before they gained the lead against a Tony Pulis side that was set up to frustrate Chelsea.
Antonio Conte acknowledged in his post-match press conference that the Baggies locked their defence. He said: “We have won nine in a row which is fantastic because this league is very tough,” he added. “We are working very well.
“I think West Brom prepared well defensively and tried to close every space. This game if you find the goal quickly, you can have an easier game. When you don’t find the goal, it becomes more difficult but we were very good to find in the right moment to do it.”