Las Vegas police have kicked off an investigation after a fan in the stands at Allegiant Stadium struck Arizona Cardinal's quarterback Kyler Murray in the face after Murray rushed the stands after The Cardinals completed their epic comeback win. The Cardinals rallied from a 20-0 halftime deficit for a 29-23 win in OT. After the game, Kyler Murray celebrated with Cardinals fans that were in the front row of the stands.During that time a fan in the 2nd row reached over and hit the Cardinals QB in the face with his open hand.=