Barcelona boss Guardiola praises Mascherano after Copenhagen victory
Guardiola singled out the former Liverpool midfielder for praise after the 2-0 Champions League win.
He said: "He is a fantastic player and has earned the support of the locker room. It is no coincidence that he's captain of Argentina.
"He's very competitive, he helps a lot and plays the game like nobody else.
"He is a very good signing."