Wayne Rooney and Roy Keane were in agreement over a controversial moment during Arsenal’s win against Manchester United this afternoon. The Gunners secured one of their biggest wins of the season with a professional 1-0 win against United, with Old Trafford one of Arsenal’s historically worst stadiums in the history of the Premier League. Whilst Arsenal got the win this afternoon, it could have been a different story entirely had United been awarded a penalty in the first half, a moment that could have swung the game in a different direction had it been awarded. And Rooney and Keane both had t…