Marcelo's training ground clash with Real Madrid captain Sergio Ramos has been detailed.
News of the showdown emerged on Sunday ahead of victory at Real Valladolid.
AS says the Brazilian won his mini game and then uttered the phrase: "Now, you're gonna suck me off!"
It was at this point that Ramos, in his capacity as captain and who was on the other team, intervened and reproached him for the comment.
Marcelo was interpreted as showing a lack of respect for the squad and also the coach.