Robert Griffin III had to be restrained by hot-and-heavy girlfriend Grete Šadeiko after the Browns quarterback got into a heated exchanged with a stranger during a recent training session.

Footage obtained by TMZ shows Griffin and an unknown male getting into a spat after witnesses say the NFL star accidentally bumped into another runner on the track at Florida State University. It led to a confrontation, and Šadeiko stepped in to keep the peace.

“The [other guy] got heated and got way too close to [Robert], but Robert didn’t touch the guy not once nor put his hands on him,” Šadeiko told TMZ.

“The guy tried to approach him again while Robert was walking away. I went between so the guy wouldn’t do anything stupid and that was the end of it.”

Sadeiko, 23, is a member of the Seminoles’ track and field team. Griffin posted a clip of his latest training session on campus on Instagram over the weekend, accompanied by the hashtags #GreteDidItFirst and #ThatsMySoulmateBTW.

The lovebirds never have been publicity-shy since kindling a relationship last year — exactly when is not clear — amid Griffin’s divorce from college sweetheart Rebecca Liddicoat, who gave birth to the couple’s first child in 2015.

Griffin’s football future with the Browns is very much up in the air after head coach Hue Jackson made it clear the team could look elsewhere for a new franchise quarterback next season.

“I haven’t come to any conclusions,” Jackson said during last month’s Senior Bowl. “Everybody else can jump to those conclusions, but were going to keep looking at this thing.

“We’ve got to get that part right, and I plan on doing that.”

Griffin signed a two-year, $15 million deal with the club last March, and spent most of the season on the sideline after going down with a shoulder injury in Week 1, Patriots backup Jimmy Garoppolo is the hottest commodity rumored to hit the QB market, but likely would come at a steep cost. The Browns also hold the No. 1 and No. 12 picks in the 2017 draft.

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