Rob Gronkowski revealed why he made the decision to retire from the NFL - explaining that football was getting him down.

"I was fortunate enough to have nine record-breaking seasons in the NFL," the former New England Patriots player shared at a New York City press conference. 

"I'm so thankful to the NFL for the opportunity to play in one of the greatest organizations in all of sports. But during that time, I had countless injuries and nine surgeries, which took an absolute beating on my body and my soul. I was hurt both mentally and physically day in and day out. I decided to walk away from the game for one main reason: I had to recover. That's why you haven't seen me in five months."

He continued:

"Wherever I go, Patriots fans always ask, am I coming back? I understand. I feel that love, but I want to be clear with my fans. I needed to recover. I was not in a good place. Football was bringing me down."

Gronk's shock retirement announcement came in March.

"It's a purpose to have passion in my life, to have joy in my life. And then to inspire optimal health within myself, I need to do that in order to get to a peak and then I can bring it to other people. Because I know [in] the NFL, players are dealing with that kind of stuff, they're dealing with pain. I was. And I needed to walk away because I needed to do what was best for myself."

According to ESPN, Gronkowski will now become an advocate for players to be able to use CBD products to tackle their pain.