Juventus fear being outbid by Chelsea owner Roman Abramovich for Atletico Madrid striker Sergio Aguero.
Juve have confirmed they've opened talks with Atletico for the Argentina international.
And Leggo says Juve reps working on the deal know they must act fast with Abramovich planning to revive his failed January bid for El Kun.
Indeed, while Aguero's buyout clause is €45 million, Abramovich is willing to pay €56 million for the player to burn off all competition.
Chelsea failed with a double bid for Aguero and Atletico teammate Diego Godin in January.
