Suarez admitted diving against Stoke City, prompting Ferguson to say this week that action must be taken.

"This [the issue of what to do about perceived diving] was raised at the LMA meeting during the week. What are the sanctions on that?

"Do they come from the club or the FA? I think the FA have a problem because is it legal, what they do? Can they prove that a lad has positively tried to dive? It is a very difficult one. They have always said that haven't they? They have no sanctions on diving. So does it go to the club? At the end of the day it probably does."