Liverpool boss Rafa Benitez admits he's a big fan of Birmingham City youngster Mauro Zarate.
"He was a team-mate of Emiliano Insua when Argentina won the Under-20 World Cup," Benitez explained on the official Liverpool website.
"He is a player we were monitoring last season because he is a very good striker.
"He is one of four brothers that play football and we know people who are close to them, so we know he's a very good player."