Tottenham striker Peter Crouch is backing his team to bounce back from their FA Cup defeat with a result against Arsenal.
The Gunners travel to White Hart Lane on Wednesday as both sides need a win in what promises to be an exciting North London derby.
Spurs crashed out of the cup on Sunday as already-relegated Portsmouth defied the odds to come out on top 2-0 at Wembley.
The defeat will have been especially hard to take for manager Harry Redknapp, who led Pompey to cup glory just two years ago.
All Tottenham have to play for now this season is a place in the Premier League's top four, as they look to secure a spot in next year's UEFA Champions League.
They currently trail fourth-place Manchester City by four points, and Crouch knows his team need a win against rivals Arsenal in midweek to put the Portsmouth reverse out of their minds.
"I was absolutely gutted to lose, but we have to pick ourselves up because we don't want our season to just fritter away," he said.
"We have to make sure we're at it for the rest of the season to try to get that fourth spot and we need to get up for it against Arsenal.
"It was an extremely disappointed dressing room at Wembley because we knew we had a good chance to get to the final.
"But we're professional people and we have to make sure we put it behind us and get up for Arsenal."
The England international believes he was denied a legitimate goal against Pompey when Niko Kranjcar was penalised for a foul on Pompey goalkeeper David James.
"You could even see Jamo's face on the telly after the incident," Crouch added.
"He was laughing and that tells you the whole story. He knew it wasn't a foul."