As one Cowboy running back was stealing underwear, another may have been getting a wife out of hers.

According to vicious tweets by former Oklahoma running back Brennan Clay, DeMarco Murray slept with his college teammate’s wife.

(Murray has a daughter born last year with actress Heidi Mueller.)

In the tweets, Clay identified Gina D’Agostini as his cheating wife. She soon deleted her Twitter account.

Clay was a Sooner for four years beginning in 2010 — Murray’s last season in Norman. He had a training-camp stint with the Broncos before being waived in August.

Here’s a picture of Clay with Gina … and Johnny Manziel, who always seems to find his way into these matters.

http://instagram.com/p/qrlYbCEDHu

It’s been a sordid season off the field for Dallas running backs, as Joseph Randle was arrested on a misdemeanor shoplifting charge earlier this season for allegedly swiping a pack of underwear and a bottle of cologne at a Dillard’s in Frisco, Texas.