It was reported that the gimmick was supposed to represent Kalou's attempts to break down Schalke's defence, with the teams having played out a 2-2 draw in the Bundesliga last Saturday.
However, the stunt involving the protected Wall was met with widespread criticism, and rumours were rife that the former Chelsea forward would receive a heavy financial penalty.
Kalou, though, has reacted angrily to such reports and stated that Hertha's legal team were dealing with German newspaper Berliner Kurier - who published an article relating to the issue with quotes from Kani Alavi, the chairman of the East Side Gallery, condemning the incident.
Kalou posted on Twitter: "There is absolutely no truth to this story. The club's lawyers have contacted German paper Berliner Kurier."
