Chelsea interim manager Rafael Benitez has expressed his disappointment following Thursday's Europa League defeat to Steaua Bucuresti.
The Blues were beaten 1-0 in Romania in the first leg of their last-16 tie.
"It was a difficult game, you could see the atmosphere and the pitch was not the best," Benitez is quoted as saying by BBC Sport.
"We are disappointed because we conceded a goal with a soft penalty and had one or two chances to score.
"Our keeper was not making any saves and we could have scored so we have to do everything at Stamford Bridge."
Chelsea travel to Manchester United in the quarter-finals of the FA Cup on Sunday.
No Data Analysis info
Germany
Switzerland
Hungary
Scotland
Spain
Italy
Croatia
Albania
England
Denmark
Slovenia
Serbia
Austria
France
Netherlands
Poland
Romania
Belgium
Slovakia
Ukraine
Portugal
Turkey
Georgia
Czech Republic