Rory McIlroy: Seeking to cancel agreements.

Golfer Rory McIlroy has claimed he paid over $6.8m (€5m) to his agent Horizon Sports Management Ltd based on unreasonable fee rates “many times greater” than is standard in the sports agency industry.

The contract was entered into in a solicitors’ office on the day of Horizon’s Christmas party “in circumstances of great informality”, Mr McIlroy claims.

The two-time major winner, who has brought his case to the Commercial Court, also alleged Horizon is not entitled to be paid certain, future fees on his $20m-a-year sponsorship deal with Nike.