Kroos, 24, has been tipped to leave the Allianz Arena for the last six months, with the midfielder wanting a new contract to stay with the club - which reportedly involved a large pay rise. The Bundesliga champions weren't prepared to hand him the extension he desired, and his potential availability alerted a number of clubs around Europe.
Manchester United were most strongly linked with him in the January transfer window, but since the Red Devils appointed Louis van Gaal as their new manager, it's been Chelsea and Real Madrid chasing his signature - and it seems that the Spanish giants have beaten their former manager Jose Mourinho to the German international, with a £20m deal reportedly set for completion after the World Cup.
It's a blow for the Blues, who could've added another star central midfielder to Nemanja Matic and Cesc Fabregas, but if Mourinho still wants to add another central midfielder to his ranks then Kroos' move to the Spanish giants could actually open up a great move for the club.
Kroos will no doubt partner Luka Modric in Carlo Ancelotti's midfield, with Xabi Alonso, Asier Illarramendi and Casemiro likely to play backup roles. That leaves Kroos' international team mate Sami Khedira in limbo, as it seems he no longer has a role to play at the Bernabeu.
Khedira, 27, has recently recovered from a serious knee injury to take his place in Germany's midfield at the World Cup in Brazil, and so far, he doesn't look to be feeling the effects of his rehabilitation. He still looks as physical and energetic as ever, working from box-to-box with great effect for Joachim Loew's side.
With John Obi Mikel and Ramires both linked with moves away from West London this summer, Mourinho may need to add another physical, athletic player to his midfield and Khedira could certainly do that job. A £23m price tag is reportedly on Khedira's head - slightly more than Kroos - but Mourinho's familiarity with the former Stuttgart man could make him perfect for Chelsea.
Khedira played a key role in Mourinho's midfield in Madrid, and now he's seemingly available, he could become an integral player in Mourinho's latest team. The reunion almost seems to make too much sense, and if Mourinho can get the best out of Khedira like he did in Spain, then Chelsea fans will soon forget about Kroos.