Despite affirming his commitment to Bayern, the Austrian has opened up potentially leaving the club where has made over 300 appearances.
"I can imagine trying something else but I really feel very comfortable at Bayern," he told Bild.
"Every year there a new challenges and new objectives and the pressure will always be there. I'm happy in Munich but of course I can imagine seeing something else [in the future]."
When asked which leagues would interest the full-back, he replied: "Spain, England. In Spain it would be the two big clubs, I guess? Real or Barcelona. Also the big clubs [in England]."