Reading manager Brian McDermott says Paul McShane and Danny Williams have been disciplined after their on-field confrontation against Middlesbrough.
The pair appeared to square up to each other towards the end of Tuesday's 2-1 defeat at the Riverside.
"We've done what we've had to do, and we've dealt with it," McDermott told BBC Radio Berkshire. "It's not acceptable and the boys will apologise.
"We're all human beings and these things happen. There are a lot worse things going on in life."