The French striker is one of a number of strikers that Barcelona have been targeting, but the Frenchman's current club claim that no official approach has been made for the player.
The Mexican club on Twitter said: "For Tigres, it will always be a proud moment when a club of international stature shows interest in one of our players ... but, until now, there has now been any formal communication with respect to Barcelona's interest in Gignac".
Para @TigresOficial siempre será motivo de orgullo que un club de talla internacional se interese por uno de nuestros jugadores...
— CLUB TIGRES OFICIAL (@TigresOficial) August 1, 2016
... pero, hasta ahora, no existe ninguna comunicación formal respecto al interés del Club Barcelona por @10APG.
— CLUB TIGRES OFICIAL (@TigresOficial) August 1, 2016