Nothing will happen to them, fined at worst.

Modric giving fase statements and perjuring himself to save Mamic is such a massive stain on his reputation and career. Especially after he pocketed most of the transfer sum that was supposed to go to his club with Mamic as well. They were in dirty deals together and Modric rather protected his scummy friend than do the right thing. He will probably get away with a light slap on the wrist as well. Great player, rotten human being.