You can watch highlights of Man Utd v Arsenal on MOTD2 at 22:30 GMT on Sunday on BBC One and the BBC Sport website. Alan Shearer and Ian Wright join Gary Lineker on the studio.
There is absolutely nothing wrong with a manager criticising his players privately, but Manchester United boss Jose Mourinho should be careful next time he throws someone under a bus in public.
I am surprised Mourinho has already done it so much, so soon, after taking charge in the summer. Whatever the outcome of Saturday's game against Arsenal, he should think very carefully about doing it again.