Thomas Tuchel believes Chelsea's defeat at Manchester City contributed to emotions taking over in their disappointing draw at Brighton.
The Blues now sit 12 points behind the Premier League champions in the table after Kevin De Bruyne's winner last weekend was compounded by Adam Webster cancelling out Hakim Ziyech's goal at the Amex.
Pep Guardiola's men have played a game fewer than Tuchel's side, but the German insists that 'frustration' and 'disappointment' following their performance at the Etihad Stadium could have plays its part in them losing further ground on City and Liverpool against Graham Potter's outfit.