See editor’s note, below.

Update (Friday, 1:02 p.m.): The Boston Globe reports all Patriots footballs were properly weighed, and approved prior to kick-off Sunday. They all reportedly fell in the range of 12.5 and 13.5 pounds per square inch.

This piece of information would seem to dismiss the theory that the referees didn’t check the Patriots’ balls correctly before the game. Aaron Rodgers, and other quarterbacks have admitted to doctoring footballs before the referees check them. The difference here is, the Patriots’ balls in question were deflated after the pre-game check-up. Referees examine each teams’ footballs two hours and 15 minutes prior to game time.

Bill Belichick and Tom Brady both denied knowledge of the deflated footballs in their press conferences Thursday. The NFL has yet to conclude its investigation about who is responsible for illegally letting air out of the footballs.

“Should we deflate all the footballs?” “No, that’s too obvious. Let’s deflate 11 of the 12 footballs.” “Great plan!”

— Jason Schwartz (@JasonSchwartz) January 21, 2015

As it turns out, deflate-gate is real.

ESPN’s Chris Mortensen reported Tuesday night 11 of 12 game balls the Patriots played with in the AFC Championship Game were under-inflated by two pounds of air as required by NFL regulations. The NFL requires that all game balls be inflated between 12.5 and 13.5 pounds per square inch.

It remains a mystery how 11 of the 12 footballs the Patriots used were under-inflated, as the NFL mandates teams turn over all of their balls to the officiating crew two hours and 15 minutes before kick-off. The referees handle the footballs before each play as well.

WHTR’s Bob Kravitz reported early Monday morning the Colts were filing a complaint to the league about the Patriots deflating balls. Balls that aren’t properly inflated are easier to grip, especially in rainy conditions.

According to WCVB’s Mike Lynch, Colts linebacker D’Qwell Jackson turned in a ball he thought wasn’t up to regulation after he picked Tom Brady off in the second quarter. The Patriots scored 28 unanswered points after Jackson tipped off the officials about the Patriots using under-inflated balls, and defeated the Colts 45-7.

Patriots head coach Bill Belichick declined to comment on the matter Tuesday.

Mortensen writes the NFL hasn’t decided any penalties it will impose on the Patriots, but that the league is “disappointed … angry … distraught” about its findings. The Patriots lost a first-round pick after the league confirmed the team was filming opposing clubs’ defensive signals in 2007.

Editor’s Note: The headline on an earlier version of this story contained an error. ESPN’s report has the Patriots playing with under-inflated balls, but does not indicate who deflated them.