Arsenal fear Laurent Koscielny has been unsettled by interest from Bayern Munich. Bayern are ready to offer £15 million for the France international.
An Arsenal insider told The Sun: "Laurent is aware of Bayern's interest and has talked about it with other players. No one knows how it will end up but anything is possible.
"It's worrying because it's a very attractive option for him to sign for the Champions League winners, who will have Pep Guardiola as manager next season."