Rory McIlroy is suing Horizon Sports just days after he split from the management company.

The move comes after McIlroy, 24, left Horizon to form his own firm, Rory McIlroy Inc.

A small-handpicked group, including McIlroy’s father, Gerry, will run the new company.

Representatives for McIlroy and Horizon would not comment.

The dispute, which Irish media reports say concerns commissions paid by McIlroy to Horizon, was filed in Commercial Court in Dublin. It is another distraction for the former World No. 1.

Less than two years ago, McIlroy left International Sports Management, a company run by Chubby Chandler for Conor Ridge’s Dublin-based Horizon group. McIlroy pointed to concerns about the direction of his career and development of his brand.

On Jan. 14, McIlroy signed a contract with Nike, initiating a legal battle with former sponsor Oakley that is ongoing. McIlroy since has signed with Bose and Omega, among others, but the two-time major champion has gone winless this year on both sides of the Atlantic.

“Since October 2011, Horizon has achieved exceptional results for Rory in realizing his commercial objectives,” Horizon said in a statement. “Under Horizon’s management, Rory has signed some of the most lucrative endorsements in sports history.”