Bron joined the Manning Bros during their "Monday Night Football" broadcast ... when the Giants legend asked James if it were true that Dallas recruited him back in the day, with Eli asking if he had "any temptation to put the uniform on and go play for the Cowboys?”

"That's true, Jerry Jones offered me a contract. Also, Pete Carroll did as well, in Seattle during our lockout time," LeBron told Eli and Peyton.

"It definitely got my blood flowing again. Got my mind racing again thinking about the game of football, being out there on Sundays."

Unfortunately for Cowboys and Seahawks fans, Bron says NBA players and owners quickly worked through their differences, and lockout ended shortly after.

"We were able to get a deal done in the NBA and I was back on the court in no time, but I definitely thought about it. I still got the jerseys too, that Jerry and Pete Carroll sent me from 2011."

Eli asked which position teams envisioned the 6'8", 250+ lb. basketball legend playing -- wide receiver, tight end?

“Yeah, more tight end, tight end," LeBron answered ... "I wanted to be a red-zone specialist like Gronk.”

You'll recall, James was a talented receiver in high school, playing for St.-Vincent-St. Mary’s football team … even getting recruited by several Division 1 schools (for football).

He smashed the competition during his junior year ... racking up 57 receptions, 1,160 yards, and 16 TDs.

Great numbers ... but safe to say his decision to quit football and focus on hooping turned out well for the future Hall of Famer.

But, not even Peyton could stop himself from imagining what it would've been like to throw the ball up to a freakishly big, strong, and talented athlete.

“I would have thrown so many touchdowns to LeBron, put him out wide, throw the ball, throw the fade, jump ball. 75 touchdowns.”