Shaw: Van Gaal was right, I made a mistake

And the 19-year-old admitted he underestimated just how challenging it would be to make the step up from Southampton to Manchester United.Van Gaal revealed at a press conference on Monday that he has had to devise a special training programme for Shaw, who turned up for pre-season out of shape after three weeks off.The Dutchman was clearly not too happy with Shaw given that he had only just sanctioned the teenager's expensive transfer from the south coast. Shaw has no qualms with his manager's public criticism of him."Obviously I have seen that, and it's something I totally agree with," Shaw said when asked about Van Gaal's press conference comments."To play in this formation you have to be really fit. I am fit but I am not at the high level he demands. I have got to get fitter to get up and down (the wing). It's something I have got to work on."Shaw became the fourth most expensive defender in history when he swapped Southampton for United in a deal that could cost the Old Trafford club £28 million.Although he played for England at the World Cup, it is worth remembering Shaw only made his full Premier League debut in November 2012.Shaw admits he miscalculated just how physically demanding it would be to step up and become United's first-choice left-back as part of Van Gaal's new 3-5-2 system."It was a surprise. I didn't come into United thinking it would be much harder," Shaw said. "That's something that I think I made a mistake on."I thought it was just going to be the same but it's the biggest club in the world and there is world-class players in training. That is something that is going to push me on and it's something I am looking forward to doing."(uk.eurosport.yahoo.com)Bakudaily.az