Neuer is running into the final 18 months of his Bayern contract and there have been rumors negotiations have stalled, which have alerted interest from other clubs.
Schalke goalkeeper Alexander Nubel will join the club on a free transfer this summer.
Neuer has been at the club since 2011 and reportedly rejected a two-year contract extension, wanting three years at least.
Bayern legend Lothar Matthaus has had his say on the matter, insisting the 34-year-old should show more gratitude, especially given his current age at the moment.
Matthaus said: “Especially in these times, he should remember that gratitude and appreciation go both ways. He was quoted by Metro.”
“To stubbornly insist on such a long contract, which he would hardly be offered anywhere else at his age, would be rude.”
“If Bayern offer him a contract until 2023, and the player wants one until 2025, they should meet in the middle, at 2024.”
