5 reasons Chelsea will lose at West Brom, including Berahino’s pace, Costa’s head & Baggies bogies

2. Costa’s head

Chelsea problems are not exclusively at the back.

The Blues have issues in attack too.

They relied heavily on the goals on Diego Costa last season, but the Spain international does not look confident right now.

Unless he sorts his head out quickly, Mourinho’s men could find themselves in real trouble.