Martin Nievera is facing another problem as Cavite Representative Elpidio “Pidi” Barzaga Jr. is filing a complaint against Martin Nievera for singing the national Anthem in a wrong manner.Barzaga said the singing of Nivera during the bout of Manny “Pacman” Pacquiao against Ricky “The Hitman” Hatton last Sunday at MGM Garden Arena in Las Vegas was simultaneously watched and witnessed in the country through live coverage by Solar Sports.He intent to file a test case against him.Barzaga came from Cavite where Julian Felipe, the composer of Lupang Hinirang, hailed.