After his recent dismal performance at the Etihad I was apoplectic about Mariner. Watching his repeat act tonight at Leeds I have to ask what happened to referee assessors. In my time they assessed league refs every game. Judging by the fact he's still on the prem, I can only assume he's not been assessed since 2015.
I gave up in my early 60s when I realised I was doing what he's doing now. Forget the 30 yards either side of the half way line total area coverage, he's simply letting the players down.
When aided and abetted by Oliver in not penalising zhaka, it's just embarrassing. If he was a horse they'd shoot him.