Lee Westwood has left Andrew (Chubby) Chandler’s International Sports Management company after being a client for 24 years.
After former Open champion Darren Clarke, Westwood was ISM’s longest-serving client, as well as one of Chandler’s closest friends.
According to various sources, Westwood, who is currently going though a divorce from wife Laurae, has signed with Guy Kinnings' International Management Group (IMG), another long-time friend of the former world number one.
Westwood and ISM have refused to comment on the departure.
The reasons remain unclear, although it is understood in The Telegraph that there is a legal dispute between the golfer and the agency.
Westwood, who is enjoying a solid run of form on the course with seven top-20 finishes already this season, will bid to win his first major championship at the Open Championship at Royal Birkdale next week.
The 10-time Ryder Cup player has accumulated 11 top-five finishes in the majors, and is widely considered as one of the best players in the game today yet to win a major.