Tony Pulis admitted West Brom “switched off” after going in front at Reading as Brian McDermott’s side fought back to win 3-1 in their FA Cup fifth-round clash.
Darren Fletcher opened the scoring for West Brom in the 54th minute but Paul McShane levelled five minutes later before Michael Hector and Lucas Piazon netted to earn Reading a place in the quarter-finals of the FA Cup.
Albion have won just twice in their last 11 games and their misery from defeat and the incident involving Chris Brunt was compounded after Jonny Evans was ruled out for a number of weeks with a hamstring injury.
Pulis said: “We have been very good this year defending set plays but we were poor. It wrestled away the game from us. We still had two really great chances at the end which we missed but credit to Reading, I hope they get a good draw.
“I picked a good team, a strong team. The disappointing thing is Jonny Evans coming off with a hamstring injury late on, they get their third goal with Jonny off the pitch. He is going to be out for a few weeks now as well.
“We scored the goal and just switched off. I have seen the two goals and it is people switching off and not doing their jobs. You can’t legislate for that.”