By Matthew Cooper Manchester United captain Bruno Fernandes has admitted it is “going to be hard” to secure a top-four finish this season following their 3-1 defeat to Manchester City on Sunday. The result leaves United 11 points off fourth-placed Aston Villa, who beat Luton Town 3-2 on Saturday. And while Fernandes has vowed the Red Devils will “try until the end of the season to get into that fourth place”, he realises it is a difficult challenge. “We need to look forward,” Fernandes told club media. “We don’t depend only on ourselves to get into the positions we want. We’re not hiding from …