Fenerbahce have been at war with the Turkish Football Federation after crazy scenes following their loss to Trabzonspor last month.
Their players were attacked by opposition supporters after they ran onto the field and tried to fight them.
Since then, Fenerbahce have been demanding change at the Turkish FA and have threatened to pull out the Super Lig.
In the latest episode of the saga, Fenerbahce fielded their Under-19 team in the Cup final in protest.
Mauro Icardi scored for Galatasaray after just one minute of play.
And moments later the Fenerbahce side walked off the pitch and refused to play.
The win has been handed to Galatasaray.
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