NFL Commissioner Roger Goodell on Tuesday upheld a four-game suspension of Tom Brady for his role in deflating footballs used in the game that put the New England Patriots in the 2015 Super Bowl, saying for the first time that the star quarterback had his phone destroyed to keep it out of hands of investigators.

In the latest turn in the scandal, known as "Deflategate," Goodell said he affirmed the suspension in part because of the new revelation that Brady made "a deliberate effort" to keep investigators from reading text messages stored on the device.

The four-time Super Bowl champion directed an assistant to destroy the cell phone on March 6. That was the same day he was due to meet with Ted Wells, an investigator hired by the league to examine allegations that Brady was complicit in a plan to tamper with the balls. The new information emerged during Brady's 10-hour appeal hearing at the NFL's New York headquarters on June 23.