Texans offensive guard Jeff Allen squared off with gritty outside linebacker John Simon during an organized team activity last week as tempers flared.
The combatants were quickly separated as neither man backed down during a short, intense confrontation.
It served notice, though, to his new teammates what Allen is all about.
Allen arrived in Houston via a four-year, $28 million contract. And his feisty reputation built with the Kansas City Chiefs followed the Chicago native.
One of the reasons the Texans targeted Allen as the replacement for right guard Brandon Brooks was the edge and physical presence he brings to the game.