Chelsea star Mason Mount says he and his team-mates have to be ruthless as they seek to bounce back from a derby thumping by Arsenal.
The Blues started the Boxing Day clash at the Emirates as strong favourites to take three points but were instead the victims of a 3-1 defeat.
England midfielder Mount wants to see Chelsea put the defeat behind them as quickly as possible and offered no excuse for the display.
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“We have to be harsh on ourselves. We can’t start a game like that and expect not to be 2-0 down at half-time.