Brazil coach Mano Menezes admits Arsenal fullback Andre Santos doesn't fit into his playing system.

Menezes recalls the difficulties he had reigning in the attacking tendencies of the defender.

"The issue surrounding Andre Santos is a tactical one," Menezes told ESPN Brazil. "He made my remaining hair become grey when we were at Corinthians. Why? Because he is tactically irresponsible.

"We can't afford that kind of tactical risk in the national team."