Asked if he felt Mesut Ozil and Alexis Sanchez were fully committed to Arsenal, Mertesacker told Sky Sports: “Yes. Everyone has to do his job 100 per cent otherwise they are not eligible to be on the pitch.
“As long as everyone understands that then we are fine and you won’t get problems from me. If I have a different feeling then it would be addressed.”
Mertesacker also said he had no issue with any player in the final year of his contract, with the German also in his final 12 months before becoming Arsenal’s academy manager.
“I have no problems with players in their final year, that includes me as well. The only issue I’ve got is if they’re not fully committed to what we’re doing here,” he added.
“Even if you’re in your final year you have to prove yourself every single day, in order to stay here or to get another contract somewhere else.
“A lot of people focus on being on long-term contracts, but that’s not needed. I don’t feel a dip in commitment; we’re in a good front with those who have their contracts expiring.
“It’s similar to me. I’m staying at the club definitely, which makes it a little bit different, but we want to be successful here and everyone is committed to that.”