By Tom Dierberger The Las Vegas Raiders were in the holiday spirit following their 20–14 win over the rival Kansas City Chiefs on Monday at Arrowhead Stadium. Las Vegas safety Tre’von Moehrig, who racked up three tackles in the win, posted a savage message to social media after the game. “Grinch stole Christmas mf,” he wrote minutes after the Raiders walked into a joyous locker room. Moehrig wasn’t the only Raiders player to reference the Grinch on Monday. Jack Jones, his teammate in the secondary, did his best Grinch impression while celebrating a pick-six touchdown by acting like he’d hand t…