Diego Costa has been speaking about the positive atmosphere within the Chelsea squad.
The striker, who scored the opening goal in last weekend’s 2-0 win over Aston Villa, is expected to lead the line when we take on West Ham United at Upton Park.
Speaking to the BBC’s Football Focus, in an interview which will be aired tomorrow, he praised his team-mates for the sense of togetherness which runs through the group.
‘Things aren't going so well for the team right now, but it's not because of the changing room,’ said Diego Costa.
‘The atmosphere is great. During the year I've spent here, there hasn't been one argument. There are normally disagreements in all changing rooms, but it hasn't happened here.’
The 27-year-old went on to explain why Jose Mourinho is such a talented manager.
‘Before the season started, the coach warned us,’ said Diego Costa. ‘We had a meeting with him and he warned us about our mentality.
‘Our coach is very clever - he saw the situation we are in at the moment before it happened.
‘What has surprised me with Mourinho is the affinity he has with his players. Everyone talks about Mourinho's image on the touchline, how serious and even arrogant he is.
‘But he really has an affinity with his players in the changing room, on a day-to-day basis.’
The full interview can be seen on Football Focus on BBC 1 tomorrow at 12.10pm.