Rory McIlroy is reportedly suing his former management agency. (Michael Cohen/Getty Images) Rory McIlroy is suing three companies, including his former management agency Horizon Sports Management, reports The Independent.
The report does not say why McIlroy is suing or how much he is seeking.
The lawsuit also named two other companies, Gurteen and Canavan Management, according to the report.
McIlroy decided to part company with Horizon Sports Management because he believed they were costing him too much money.
McIlroy is reported to believe that the $7.5m he says he paid the group over the one-and-a-half year period did not make business sense, despite having willingly signed up to the agreement two years ago.
The two-times Major winner believes he had no option but to sever ties with the company, headed up by Conor Ridge, as his contract does not run out until 2017.
McIlroy, the world's sixth-ranked player and two-time major winner, fired European super agent Chubby Chandler and joined Horizon in October 2011, saying he wanted "move onto the next stage of my career" and felt the move would be "facilitated by a fresh view and a new structure around me."
Horizon was instrumental is helping McIlroy secure an equipment deal with Nike believed to be around $20 million a year.
Earlier in the week, McIlroy fired the sports agency and joined his own company, Rory McIlroy Incorporated.