Los Angeles Rams receiver Van Jefferson rushed away from his team's Super Bowl celebrations to be with his wife as she gave birth to their second child, with new video showing the moment he was told she was in labour.

Samaria Jefferson gave birth shortly after Monday's (AEDT) game ended, with husband Van racing from LA's SoFi Stadium as his team celebrated their 23-20 win over Cincinnati.

Jefferson had four catches for 23 yards in the Rams' victory over the Bengals to complete his second NFL season.

Samaria attended the Super Bowl, but left on a stretcher during the game after going into labour.

She had already told the Rams not to tell her husband if their second child decided to arrive during the game.

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The NFL has since released video of the moment Jefferson, with confetti still falling on the field after the game, was told by a staff member that his wife was giving birth to their son.

"Oh my gosh," the 25-year-old said, before turning his attention to five-year-old daughter Bella, who was on the field with him.

"We gotta go to the hospital. We gotta go quick."

Jefferson later posted photos of himself and his wife holding their newborn son.

And while on-field receiving partner Cooper Kupp was named Super Bowl MVP, Jefferson knew who the real MVP was.

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ABC/AP