The Gunners are looking to respond from the 5-1 thrashing they got at Anfield last weekend in their FA Cup fifth-round clash tomorrow at the Emirates.
Cissokho said: "It will be very tough mentally for them after losing the game like they did last week.
"It's a difficult run for them and they're not in the best run of form at the moment.
"But Arsene Wenger and some of the players are very experienced.
"We have to make sure we profit from their drop in form and don't let them develop their game, get on top from the first tackle and make them uncomfortable.
"In their mind they must be thinking of Bayern too. We have to get on top early."
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