The Germany international got into a heated exchange with his Trabzonspor teammate Aykut Demir. Marin cut short his training session and left following the argument.
Marin became the second Chelsea player to move to the Süper Lig on loan this season following Kenneth Omeruo who joined Kasımpaşa.
The 26-year-old joined former Chelsea player Jose Bosingwa in Trabzon. There are a number of other ex Chelsea players in the league including, Samuel Eto’o, Gökhan Töre, Ricardo Quaresma and Raul Meireles.
Trabzonspor are currently in 12th place on 14 points after 11 games and take on Gençlerbirliği next in the Turkish Super League.
Marin has provided two assists and scored one goal in eight appearances for Trabzonspor this season. Trabzonspor have the option to sign Marin at the end of the season.