According to FIVB, teams must register 2 liberos to the final round.
Ok, in most teams we have this included in rosters: ARG: Gonzalez, Santucci ITA: Giovi, Rossini BUL: Salparov, Gradinarov (although he's OH) CAN: Bann, Lewis RUS: Verbov, Ermakov. Only in Brazil we have only one libero and we don't have letters L in roster, so they should correct it