The 28-year-old remains an integral part of the Bayern Munich team, making 47 appearances this season across all competitions, scoring seven goals.
He has made 347 appearances for the Bundesliga giants since arriving from RB Leipzig in 2015 and the club does not want that relationship to end any time soon.
Barcelona, though, are looking for a new holding midfielder due to the departure of Sergio Busquets this summer and Xavi has made no secret of his admiration for the Germany international.
‘He is a super top player, who understands the game in a fantastic way. If there is an open door, there will be a negotiation with Bayern,’ Xavi told Mundo Deportivo of Kimmich.
‘What is clear is that we need a player of a very high level in that position, otherwise, it will be very difficult to compete next year.’
In response, Hainer has dismissed the possibility that the versatile defender and midfielder will leave this summer and says he can’t get his head round why Barcelona would be so open in talking about another team’s player.
‘I don’t understand why they [Barca] openly and offensively flirt with our player,’ Hainer told Sky Sport.
‘Joshua Kimmich is an absolute cornerstone for us. He’s firmly in our plans for the future, for sure.’
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