The door is not closed, not even close. 

The retired New England Patriots legend made headlines Tuesday when he announced a partnership with CBD Medical.

However, the highlights of the presentation were Gronkowski’s emotional explanation of why he decided to retire from the NFL and his seeming openness to one day returning to football.

RELATED: Rob Gronkowski Reveals That Nobody Gets Superstar Treatment in New England “Not Even Brady”

During an appearance Wednesday on “Good Morning America,” Gronkowski once again teased a return to the game he left behind.

Flip the Page to see Gronk on GMA: