Bryan Robson has expressed his disappointment at Nathan Ellington for refusing to play through the pain barrier.
Ellington has missed West Brom's last three games after picking up a toe injury in the defeat to Liverpool at the start of the month.
Robson wanted Ellington to take a pain-killing injection to play against Bolton on Easter Monday, but the former Wigan striker insisted he was not fit to play.
Ellington's stance upset Robson as he was keen to have all his players available as they battle to avoid relegation.
"At this crucial stage of the season many players have injections to freeze something like that so they can play. I was disappointed," said Robson.
"I had many injections in my toes as a player but Nathan wasn't comfortable with it.
"You can't force anyone on medical terms to play if they are not happy and feel sore."