Rakitic is widely regarded as one of the best midfield talents in European football, with the Croatian international scoring 12 times for Sevilla this season.
A number of clubs have been linked with a move for the midfielder, but Marin, who is currently on loan from Chelsea, is confident that Rakitic will remain at the Estadio Ramon.
"I've known him for a while and his words were very important for me. He loves being here, I don't think he ever wants to leave," he told Sevilla TV.
Rakitic moved to Sevilla from Schalke 04 in 2010.