Jack Nicklaus is getting sued by the company that bears his own name.

Sports Illustrated reports that Nicklaus Companies, and its executive chairman, New York Trust president and CEO Howard Milstein, sued Nicklaus on May 13 in the Supreme Court of the State of New York.

The suit alleges breach of contract, tortious interference and breach of fiduciary duty.

At the heart of the dispute, the company believes that Nicklaus has failed to live up to exclusive rights to his “intellectual property and services,” for which they paid him $145 million in 2007.

The specific incidents cited in the lawsuit include Nicklaus making a paid appearance at the DP World Tour’s Soudal Open in Belgium. The legendary golfer also allegedly went around Nicklaus Companies in talks with a video game developer about his likeness in a game incorporating the Masters and PGA Tour. Nicklaus’ agent had supposedly told them separately the golfer would not be interested, without consulting the Nicklaus Companies, which had been eager for him to participate in the game.

Finally, the suit claims that Nicklaus’ talks with Golf Saudi, which the Nicklaus Companies says they learned about after the fact, risked endangering the goodwill of his intellectual property. Nicklaus Companies says that it saved Nicklaus from himself in persuading him not to take the offer that the Golden Bear has said was worth north of $100 million.

“The claims made by Howard Milstein are untrue,” Nicklaus said in the statement. “Our relationship has been a difficult one, at best. I have little doubt about the outcome, but I don’t intend to make this a public spectacle, if it can be avoided.”

The Nicklaus Companies released a statement of its own.

“We have great admiration and tremendous respect for Jack and his legacy and have tried everything to avoid taking this step,” the company said. “We are asking the court to sort out the legal responsibilities of the parties so that there is no confusion or misunderstanding going forward.

“We are saddened to be put in a situation that now requires intervention from a court, but we have a responsibility to Nicklaus Companies and its employees, as well as to our customers and partners, to ensure that nothing disrupts the ongoing business of the company. We are confident that working together we can resolve this quickly and amicably.”