"It would be a dangerous precedent if players walked off themselves because only the referee or the match commissioner can stop a game," Blatter said on Sunday.
The Fifa boss has now decided that public humiliation should be employed in combating racism.
"What we should do in such a situation is stop the game, identify the people involved in this kind of foul situation, they should be taken out onto the field and they should be booed by the rest of the spectators. In Britain, you have the video cameras at the matches and you could therefore do this. You could identify them and send them into the middle of the field in front of the public."