Rob Gronkowski said A.J. Brown is the "X factor" to put the Patriots back into Super Bowl contention after his trade from the Philadelphia Eagles.
https://www.foxnews.com/sports/rob-gronkowski-calls-aj-brown-x-factor-put-patriots-back-super-bowl-contention
https://www.foxnews.com/sports/rob-gronkowski-calls-aj-brown-x-factor-put-patriots-back-super-bowl-contention