One of rugby league’s most powerful player agents, Mario Tartak, has been issued a 12-month suspension and $25,000 fine for improper conduct by the NRL. The NRL on Thursday issued a breach notice to Tartak, who manages Dragons skipper Damien Cook, Eels flyer Josh Addo-Carr and Manly’s Haumole Olakau’atu, and fellow agent Matthew Desira, who is facing a six-month ban and $10,000 fine. Tartak, of Crown Sports Management, is alleged to have breached accredited agent rules by allegedly approaching an underage player without a parent or legal guardian present. He is also alleged to have “entered into a commercial arrangement with two NRL clubs” according to an NRL statement.