By Stephen Galindo &nbsp;&nbsp; &ldquo;STAR POWER: Mayweather vs. Ortiz&rdquo; just got propelled into another galaxy, as it was announced today that rising Mexican superstar Canelo Alvarez will defend his WBC super welterweight championship against Alfonso Gomez on the televised undercard of the September 17 pay-per-view extravaganza featuring the WBC welterweight world championship mega-fight between Floyd [...]