Evans captained the side and handed MK Dons the opener in their 4-0 rout when he blundered by passing the ball straight to the opposition in the penalty box.The 26-year-old, one of the side's most senior defenders, then put another team mate under pressure with a poor pass to gift the home side their second.On both occasions fellow Northern Ireland international Will Grigg jumped on the opportunities.Agonisingly, for Grigg he was substituted 23 minutes from time despite being on a hat-trick against the 20-time champions of England.Despite 10 changes from the United side which drew at the weekend against Sunderland in the league, the loss was one of the Old Trafford side's most embarrassing in its long history and leaves new manager Louis Van Gaal without a win in three competitive games for the Red Devils.Following the loss Evans has faced a barrage of criticism in the media from pundits and across social networks.Van Gaal said the MK Dons loss was not a shock and that he was all too aware of his team's defensive frailties."We made errors in building up situations in the first phase, and when you make errors like that you give the match away," he said.I am not shocked, Milton Keynes played very well, very aggressively.Louis Van GaalThe Dutch man deflected attention from Evans' errors admitting he played a role in the defeat by pushing his team on for the win in the second half."I am a coach who always takes risks," he said, "and at half-time I changed how we played.""And we had nine injuries. We also had to play within 48 hours so I could not play with the same squad as on Sunday."United, who handed a British transfer record fee to Real Madrid ahead of the game for Argentine Angel Di Maria, have suffered a rocky start to the season following last year's poor performance under the sacked David Moyes.However, Van Gaal insisted he would put things right."When you start as a manager in the Premier League with a home loss, a draw, and after that you lose a cup match then it is very disappointing," said the former Netherlands boss."For the fans it's very difficult to still believe in the philosophy of Louis van Gaal but you have to do that because I am here and I am here to build a new team and a new team is not built in one month, it takes time."