But the endorsement career Jordan cultivated as he led the Chicago Bulls to six NBA championships in the 1990s could lead him next to a court of law — and back to the city where he became an international icon.

Jordan’s lawsuit against the supermarket chain Dominick’s is headed for trial with jury selection to start Tuesday at the Dirksen Federal Courthouse. The case revolves around an ad published six years ago by the now-defunct grocer that featured Jordan’s name and his famous number “23.” As plaintiff, Jordan is expected not only to attend but also to testify. His name even appears at the top of a witness list filed at the courthouse last week.

A key issue will be the amount of money Jordan is paid for the use of his likeness. That means the value of his various endorsement deals could come out in court. However, the danger that other sensitive details could be revealed prompted Nike, Gatorade and Upper Deck to make an extreme request late last month. They asked the judge to consider restricting access to the courtroom to protect their confidential commercial information.

The judge has yet to rule on the request.

“This case is about protecting Michael Jordan’s right to control who uses his identity, and how they use it,” Frederick Sperling, Jordan’s attorney, told the Chicago Sun-Times.

Dominick’s attorney, Steven Mandell, declined to comment last week. So did John Martin, who represents Nike, Gatorade and Upper Deck. The spat over the companies’ contracts with Jordan may be part of an effort to prompt Jordan to settle out of court. Assuming he doesn’t, the case will play out in front of U.S. District Judge John Robert Blakey, who recently referred to Jordan in a ruling as a “former Chicago Bull, Birmingham Baron and ‘Space Jam’ star.”