Bayern Munich chief Oliver Kahn has confirmed Niklas Sule will leave the club at the end of the season.
The Germany international has become a regular at Bayern since joining from Hoffenheim in 2017.
But with his contract expiring in June, Sule is looking for a new challenge.
Kahn revealed on Wednesday: "We made him an offer, which he told us he didn't accept.
"He wants to leave the club at the end of the season."
Chelsea, Bayern Munich and Newcastle United have both been linked the 26-year-old.