Argentine football coach Gerardo Martino, aka "El Tata", greets fans waiting for him outside his house to get an autograph, on July 22, 2013 in Rosario, province of Santa Fe, Argentina. Former Newell's Old Boys and Paraguay national team manager Gerardo Martino is set to become the new Barcelona coach, numerous sources in the Spanish media reported. AFP PHOTO / CARLOS CARRION (Photo credit should read CARLOS CARRION/AFP/Getty Images)