Arsenal boss Arsene Wenger admits their Champions League elimination played a part in defeat at FA Cup opponents Manchester United.
Two weeks ago Gunners supporters were talking optimistically of an unprecedented quadruple.
Defeats to Birmingham and Barcelona in the Carling Cup final and Champions League respectively wrecked that dream, and goals from Fabio and Wayne Rooney either side of the break at Old Trafford now leave Arsenal with only the league title to chase.
"Subconsciously I feel the disappointment of Tuesday played a part in the game,'' he said. "You could see something has gone, not in our effort or attitude, but confidence-wise.
"But I don't feel like the season is slipping away. I believe we can do it (win the title). It is a good test for us now to show we can regroup and show the mental strength and togetherness quickly.
"We will have to answer this kind of question in the next two or three weeks. We have to show we have an answer.
"We are used to being questioned. We have to show we are strong enough to deal with it.''
