Move over OBJ ... Eli Manning has a new favorite acronym -- MBJ, as in Michael B. Jordan!!!
The New York legend welcomed the movie star to MetLife Stadium in a new episode of "The Eli Manning Show" this week ... and Jordan -- a die hard Big Blue fan -- wanted to live out his childhood dream by becoming a Giant for a day.
The award-winning actor linked up with Manning and former center Shaun O'Hara at the facility .