Wolves boss Nuno Espirito Santo claimed referee Lee Mason was not good enough for the Premier League after his side's 2-1 loss at Burnley left them stuck in the bottom half of the table.
Fabio Silva's first Premier League goal - an 89th-minute penalty - was too little too late for a Wolves side who lacked cutting edge in the continued absence of Raul Jimenez as Ashley Barnes and Chris Wood scored for the hosts.
Wolves were arguably lucky to finish the game with 11 men after a stoppage-time VAR check when Joao Moutinho appeared to kick out at Josh Brownhill but, though that decision went in their favour, Nuno questioned Mason's fitness to referee in the top flight.