Bayern Munich completed the second half of a domestic double at the weekend, emerging 2-0 cup final winners over Borussia Dortmund.
They did so without striker Mario Mandzukic, who was dropped despite finishing the season as Bayern's top scorer.
Reports in Germany are now delving into the reasons for his snub, and cite a fallout between the Croatian and manager Pep Guardiola.
German website Sport1 report that Guardiola found his behind the scenes behaviour unacceptable in the build-up to the game.
They claim Guardiola saw Mandzukic 'smirking' after the 4-0 aggregate loss to Real Madrid, during which he was giving a heartfelt post-game speech.
He also is said to have not liked the striker's facial expressions during subsequent training sessions, and has decided to axe the forward for the final from the squad entirely.
As well as a tactical genius Guardiola is known as a strict disciplinarian who famously fell out with Zlatan Ibrahimovic at Barcelona.
With Robert Lewandowski set to join from next season, Guardiola can afford to take a harsh stance with the striker, knowing he has a ready made replacement, who many consider superior.
Mandzukic was linked last week with Chelsea as part of a swap deal with David Luiz, but whether the Brazilian lands up at Bayern or not, it appears Mandzukic may well be on his way out.
For a side like Chelsea who are keen on securing a new forward to help them bounce back from a trophyless season, Mandzukic may be just the man. If he really has fallen out with Pep Guardiola, then he will find a kindred spirit in Chelsea boss Jose Mourinho.