Chelsea defender Gary Cahill hopes the Blues can pile more woe on Tottenham when they host their London rivals at Stamford Bridge on Saturday.
Roberto Di Matteo's men suffered a setback in their bid to overhaul Spurs and reclaim a place in the Premier League top four as they were beaten 2-1 at title-chasing Manchester City on Wednesday night.
Fifth-placed Chelsea now trail Spurs by five points with nine games remaining but Harry Redknapp's once high-flying men are winless in four matches ahead of their short trip to West London.
Cahill said: "Arsenal are having decent form and Spurs have been hit the last few games.
"It is hard to keep that momentum going throughout the season. Spurs have been absolutely fantastic but it is tough to keep it going every single game week in, week out.
"You'll always have a blip in the season and maybe theirs has come now."
Spurs have a notoriously poor record at Chelsea having not won at Stamford Bridge since 1990.
Cahill added: "We're at home, where we have some confidence now and we are looking to get the positive result we need.
"We have built some momentum of late and the camp is positive at the minute."
January signing Cahill, looking increasingly assured in the Chelsea side, put the Blues ahead at the Etihad Stadium with his second goal in two games.
The England international struck via a deflection off Yaya Toure on the hour to threaten a shock win which could have derailed City's title bid.
But the introduction of City's controversial striker, Carlos Tevez, for his first appearance in six months, just moments later turned the tide.
The hosts levelled with a Sergio Aguero penalty after Michael Essien was adjudged to have handled and then won it five minutes from time after the impressive Samir Nasri combined with Tevez to score.
Cahill, 26, said: "We were unlucky but we can't let it affect us, because we have huge games coming up."