GRANBY, QUEBEC--(Marketwire - July 12, 2012) - National Bank (TSX:NA) is proud to present the 17th edition of the Granby National Bank Challenger. For a second year in a row, the mixed tournament will take place at the St-Luc courts of the Club de tennis Granby Multi-sports (located at 90 Langlois) from July 14 to 22.