The defender has urged his side to shake off a heavy Champions League loss when they face Tottenham on Sunday.
The Germans subjected the Gunners to a footballing masterclass on Wednesday evening, as Pep Guardiola’s side put in a performance of the highest order to win 5-1 at the Allianz Arena.
That once again leaves the Gunners clinging on in the Champions League, with it now looking all but impossible for them to reach the latter stages of the competition.
Mertesacker, though, says that Bayern are looking to help the Gunners as much as possible.
“I’ve already had some good discussions with the Bayern players,” he told arsenal.com.
“They want to protect and help us somehow but we have to look at ourselves, which I think is particularly important after today.”
The German defender has also urged the side to shake off the bad result as quickly possible as they look to piece together a challenge for the Premier League title this season.
Arsene Wenger’s side are going well in the league so far, currently sitting joint-top of the table alongside Manchester City, with only goal difference separating the two sides.
Some are fearful that the big loss to Bayern could have an adverse effect on the side though, and Mertesacker wants to see them pick themselves up against rivals Tottenham Hotspur on Sunday.
“You have to accept that and shake it off because we need to pick up important points in the league on Sunday,” he added.
“We’re working from game to game,. We’ve got an important league game on Sunday and then when we play Olympiacos [and Dinamo Zagreb], we must win. That’s the only chance we have a chance of qualifying and finishing in second place.”