Arsene Wenger has called on Arsenal to get the disappointment of a "very bad moment" at Norwich out of their system by taking a big step towards qualifying for the Champions League knockout phase with a win against Schalke.
The Gunners slipped 10 points behind Barclays Premier League leaders Chelsea when they went down 1-0 at Carrow Road following a lacklustre display on their return from the international break.
Wenger, though, feels the visit of the Germans, who are second in Group B, offers the perfect opportunity for swift redemption.
"We have got over it and we will focus on our next game, that is the only way to deal with it, to put the disappointment behind us and focus on Schalke," the Arsenal manager said.
"As a team, we were not as efficient as we are used to. It can happen in the season. It is just of course at a very bad moment for us.
"I expect us to respond in a strong way because this team is very ambitious and wants to do very well."
Wenger added: "We have a good opportunity, we play at home against Schalke and since we know that we won in Montpellier, our qualifying will depend on how well we do at home."
Despite having won both their opening two group games and defending an unbeaten run of 16 home matches in the Champions League, Wenger warned there can be no complacency tomorrow against a team which beat Borussia Dortmund away on Saturday.
"They are a solid side with good organisation. Up front of course they have [Klaas-Jan] Huntelaar, [Jefferson] Farfan, that we know are well, [Ibrahim] Afellay and [Julian] Draxler. They are dangerous and play a lot on counter-attacks," he said.
Winger Alex Oxlade-Chamberlain will miss tomorrow's game because of a hip injury picked up after a brief substitute appearance at Norwich.
Forward Theo Walcott is still sidelined by the chest injury suffered while on international duty against San Marino.
Schalke midfielder Jermaine Jones is hoping his side can "steal points" in London.
Jones, who had a six-month loan spell in the English top flight with Blackburn in 2011, sees no reason why Schalke cannot build on their impressive weekend win with another positive result.
"We come to show that we can steal points. We have respect for the whole Arsenal team, but we are not scared," Jones told a press conference.
"Arsenal will try to avenge their last game. Their league position is not that good.
"I have played here before and know what can happen when you let them play and play to their strengths.
"They are a strong team, but the manager will inform us how they are going to play.
"If we go into the game with the same attitude as against Dortmund, I think we can get something."