The Blues have made an awful start to the defence of their Premier League title this season as back-to-back defeats against Crystal Palace and Everton has left them 11 points behind current leaders Manchester City and could fall even further behind if they fail to take all three points against the Gunners.
Cahill captained the side in the absence of John Terry during the Champions League opener against Macabbi Tel-Aviv on Wednesday night as the west London outfit returned to form with a convincing 4-0 victory over the Israeli side thanks to goals from Willian, Oscar, Diego Costa and Cesc Fabregas.
Speaking ahead of the Saturday lunchtime kick-off, Cahill believes confidence in the squad will be high following the massive result in Europe:
“We’ll go into training in better spirits than we have been off the back of a win,” the England international told reporters.
“Everybody will be happier, more lively. We know the situation in the league so we’ll flip straight back to that and we know this is a huge game.”
“I’m not going to say it’s going to have an absolutely massive impact on the weekend, because it probably won’t, but in terms of the feel-good factor around us it certainly will,” Cahill added.
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Chelsea have a good record against their fierce rivals in recent league meetings between the two sides and have won the last two at Stamford Bridge without conceding a goal.