New England Patriots quarterback Tom Brady will be suspended for four games after losing his appeal to the NFL for the Deflategate controversy.

In a statement, the NFL said the reasoning behind upholding the suspension was that Brady's cellphone, which was seen as a key piece of evidence in the case, had been destroyed.

Originally, the NFL suspended Brady for four games, fined the Patriots $1 million and stripped them of first- and fourth-round draft picks.

"The New England Patriots have done nothing inappropriate in this process or in violation of NFL rules," Patriots owner Robert Kraft said.

After a brief blowback, the Patriots accepted the team's punishment, but Brady decided to appeal.

The controversy began with the Patriots 45-7 win against the Indianapolis Colts in the AFC Championship game this past season. Although deflated footballs were not the only reason why the Colts lost, the NFL came down hard on the Pats.

An investigation into the underinflated footballs suggested that it was "more probable than not" Patriots employees deflated footballs and Brady was "at least generally aware" of what they did.

According to an ABC report, the NFL Players Association was set to take the NFL to federal court if Brady's suspension remained in tact. (Video via NFL Players Association)

ESPN reports the lawsuit would allege, among other things, the rule was meant for team personnel, not players; the NFL doesn't have adequate ways to measure ball pressure, and commissioner Roger Goodell should have recused himself from the appeal.

"I didn't alter the ball in any way," Brady said.

Brady has maintained his innocence throughout the months-long ordeal.

This video includes images from Getty Images.