WWE wrestler Wade Barrett issues warning shot to Wayne Rooney (Video)

It turns out if you slap a professional wrestler in the face, they get mad.

It appears that Manchester United captain Wayne Rooney has kicked off something of a feud with WWE wrestler Wade Barrett after striking him in the face during Monday Night Raw in Manchester. Now Barrett has called out England's record goalscorer, threatening to come to Old Trafford to "settle this once and for all." He then sent out this chilling warning: "Wayne Rooney, your days are numbered." https://www.youtube.com/watch?v=KPSiXBH4DX4