A federal judge says he may unseal a letter from Major League Baseball that shows the Yankees were more involved in sign stealing in 2017 than previously thought.

The development was first reported by The Athletic.

That year, the league fined the Yankees for using a dugout phone to steal signs but denied claims that the Yankees were also using cameras to do it.

The letter is part of a lawsuit filed by fantasy baseball players against the league and two other teams for the sign-stealing scandal that rocked the sport last year. That lawsuit was dismissed.

The Yankees want the 2017 letter to remain sealed saying it would damage the team’s reputation.

The judge said he will give the Yankees until Monday to submit a version of the letter that would not have the names of the people involved.

The Yankees plan to appeal that decision.