Jose Mourinho accuses Alex Ferguson of `` not knowing how to behave '' after a defeat . Wenger has been involved in confrontations with several managers before . He had a fierce rivalry with Mark Hughes which subsided with Chelsea 's declining fortunes . Arsene Wenger has achieved particular notoriety , especially while at Chelsea .
Mark Hughes accuses Arsene Wenger of `` not knowing how to behave '' after a defeat . Wenger has been involved in confrontations with several managers before . He had a fierce rivalry with Alex Ferguson which subsided with Arsenal 's declining fortunes . Jose Mourinho has achieved particular notoriety , especially while at Chelsea .