QPR suspend manager Magilton
"Manager Jim Magilton has been suspended with immediate effect, pending an internal investigation," the club said.
QPR lost 3-1 and media reported there had been an angry bust-up between Magilton and Hungarian midfielder Akos Buzsaky.
Magilton dismissed the incident at the time as a "difference of opinion" and in a statement on Wednesday he denied any wrongdoing and pledged to co-operate with the investigation.
"While passions can run high in football, especially after a poor performance, I categorically deny any allegation of wrong-doing following Monday's fixture," he said.
"This is an unfortunate situation and I look forward to resuming my responsibilities shortly."
QPR, who were taken over by a group including Bernie Ecclestone, Flavio Briatore and Lakshmi Mittal two years ago, have had 10 full time or temporary managers since 2006.