Manchester United boss Louis van Gaal has been sacked today, according to reports. After a disappointing campaign in terms of style and substance at Old Trafford, the door is now open for Jose Mourinho’s return to management. Before the celebrations had even subsided at Wembley on Saturday, United’s FA Cup win was being overshadowed by fresh reports that Van Gaal was to be replaced by the former Chelsea boss in the coming days. United have steadfastly refused to comment on speculation regarding their managerial situation, while the Portuguese kept his counsel when asked about the job by Press Association Sport ahead of David Haye’s fight on Saturday evening. But with an announcement widely expected later on Monday, some media outlets started to report that Van Gaal had already been let go. Van Gaal stood firm when asked about his position in the post-match press conference at Wembley, but fuelled speculation on Sunday by telling a reporter outside the team hotel that “it’s over”. The brevity of the comment meant it was not immediately clear whether that meant the former Holland manager had been told his time at United was at an end, although his situation could soon become clearer. Van…