Messi had a game to forget, missing a clear-cut opportunity to score in the first-half, as Barcelona lost 3-1 to host, Real Madrid at the Santiago Bernabeu on Saturday.
Valdano, who also coached the Los Blancos, believes Messi's problems run deeper than just one poor performance, insisting that his compatriot is a little off-form.
'His position has changed on the pitch and now his job is more to provide assists, but he has lost his ability to disrupt the defence – something which used to solve many past games for Barca.' the former Argentina international told Spanish paper Marca,
FIFA President, Sepp Blatter, in a recent interview, said Messi didn't deserve the Golden Ball at the World Cup last summer after helping Argentina reach the final against Germany in his opinion and Valdano agrees with the World football chief, adding that the Barcelona talisman was far from his best.
'In the Brazil World Cup we saw that something was up with Messi; he walked around the pitch.
'He was physically not at his best and maybe that is the reason for playing further back, to not tire himself so much.'