John Brewin previews the weekend's Premier League action and highlights five key storylines in this edition of W2W4.
Troubled champions appear in crisis
Their wounds have been self-inflicted, but how quickly can Chelsea heal themselves? It has been a horrible week for the Premier League champions. Last week's 3-2 loss to Burnley was an opening-weekend disaster, from Gary Cahill beginning life as captain of the club by being sent off after 14 minutes to Cesc Fabregas getting himself dismissed late on.
At Wembley on Sunday, where they face Tottenham Hotspur, Antonio Conte has a personnel crisis in midfield and defence.