Former Arsenal defender Martin Keown was impressed by Manchester United in defeat to Manchester City.
Keown wrote in the Daily Mail: "They may have lost but I can see improvement in United. Louis van Gaal is seen as an innovator, and his tactics were interesting in the first half. Daley Blind dropped into defence while Wayne Rooney came very deep to receive the ball.
"Angel di Maria tucked in and Marouane Fellaini occupied the right. City did not know how to deal with United when they had the ball. But the visitors were exposed on the flanks when they lost possession.
"The second half saw a gallant effort from United - going down to 10 men forced them to give more, especially Rooney. However, it will be a worry for Van Gaal that Robin van Persie's work-rate did not match the rest of the team."
