Manchester United fans are baffled as this Zlatan Ibrahimović volley is disallowed

Zlatan Ibrahimović needs two goals today to overtake Lionel Messi as the top scorer in European football's top leagues on 2016.

His Manchester United side are up against Middlesbrough, and the Swede thought he had drawn level with his former Barcelona teammate when he prodded the ball into the Boro net in the first half. However, referee Lee Mason intervened, disallowing the strike and keeping the scores level at 0-0 going into the break. Zlatan's foot was high, but there was some debate over whether his actions constituted dangerous play. There is no doubt that his boot was nowhere near head height by the time goalkeeper Victor Valdés was in shot, and that is a point being made by a lot of people. https://twitter.com/JamieJackson___/status/815221070324121600 https://twitter.com/GaryLineker/status/815221303959494656 https://twitter.com/samuelluckhurst/status/815221018704760832 And it didn't take long for more theories to emerge about Mason's decision-making. https://twitter.com/TBNSport/status/815223055115055104 https://twitter.com/tomEurosport/status/815223307360489473 https://twitter.com/darrenrichman/status/815221307084308480 Of course it didn't escape people's attention that Valdés, the villain of the piece, had a score to settle with United. After being frozen out by Louis van Gaal and allowed to leave after a season on the sidelines, was this the Spaniard's revenge? https://twitter.com/A_W_Gordon/status/815221061235179520 https://twitter.com/CraigEnglish92/status/815222146158960640