According to ProFootballTalk.com, Troy Vincent, NFL executive vice president of football operations, said during an interview that airs on Showtime Tuesday night that
Vincent said Grigson made his request during the second quarter of the game. Vincent didn't say how Grigson became alerted to the possibility that the Patriots were playing with underinflated balls. Grigson has not spoken publicly about the controversy.
"I wouldn't know how that could even be an advantage or a disadvantage," Jackson told NFL.com. "I definitely wouldn't be able to tell if one ball had less pressure than another."
Showtime will air Vincent's interview on "Inside the NFL" on Tuesday at 9 p.m. PST.