YOU can tell when a Premier League manager is feeling the stress of the job. They resort to picking arguments in press conferences and it sometimes gets quite petty and can lead to name-calling.

Former Leicester manager Nigel Pearson hit the headlines last season for calling one journalist an “ostrich” — for having his head in the sand all season and ignoring the “good” football the club had been playing.

While other managers aren’t as witty or metaphorical as Pearson, usually sticking with mundane insults such as “idiot” or “pathetic,” Louis van Gaal went one step further last week Wednesday.