Borussia Dortmund have confirmed that Mats Hummels has requested to leave the club at the end of the season and join Bayern Munich.
Dortmund confirmed in a statement on the club website that Hummels wants to join Bayern Munich, however the Bundesliga champions have yet to make an offer for the Dortmund captain.
Dortmund also confirmed that Hummels has no release clause.
The statment read:
"The player Mats Hummels informed Borussia Dortmund that he wishes to leave the club in order to join FC Bayern Munich with effect from the 2016/2017 season.
"Against this background the management of Borussia Dortmund has decided that the realization of such a transfer shall depend on the condition that Bayern Munich provides Borussia Dortmund with an extremely valuable offer which reflects the high importance of the player in soccer and other terms for Borussia Dortmund. At present no offer at all has been made by Bayern Munich yet.
"By a way of precaution Borussia Dortmund likes to emphasise that one has not agreed an "exit clause" with the player - also not with any other player of Borussia Dortmund at present - and the player is therefore bound by his employment contract with Borussia Dortmund until June 30, 2017 at latest."
Source: transfermarketweb.com