Manchester City boss Roberto Mancini called for an improved performance from his players after weekend defeat at Everton.
The Citizens started brightly against the Toffees and took a deserved lead through Yaya Toure, but a poor second-half performance saw the Italian's side go down 2-1 at Goodison Park.
“It is incredible how we lost that game,” the manager told the official Manchester City website.
“I thought that after the first half it would be impossible for us to lose. We had many chances to win the game but in the end we defended too deeply for fifteen minutes and invited Everton to play long balls."
Attention was turned straight to the clash against Spurs on Tuesday night though, with the race for Champions League qualification far from over should City be defeated.
Mancini was quick to note that his side were still in the driving seat with only three games left to go tough, and victory at Eastlands would assure a top four finish.
"It will be very hard. I think that for Champions League we do not have a problem because with three games to play we only need three points. But it will be hard, and if we want a positive situation we should try to win."
With an FA Cup final against Stoke City around the corner, Mancini admits a game against Harry Redknapp's side isn't the best fixture to have but claimed his side will be focused and going for victory.
"This is the problem but now when we play before (the cup final) against Tottenham we should try to win," he continued.
"But it will be difficult because they are a fantastic team. It's finished if we beat them."