Valencia midfielder Pablo Piatti admits inconsistency has let them down this season.

Valencia are currently third, 14 points behind leaders Real Madrid, while Racing are 16th despite a run of good results under new coach Juanjo Gonzalez.

"The league is very important to us and we must remain consistent,'' Piatti told as.com. "We need a win [against Racing].

"I always said that mentality is a very important factor. I never stopped working and trying, sooner or later results appeared.

"I have a lot to prove in Valencia. It was a good game all round against Levante.''