Watch Juan Manuel Marquez vs Juan Diaz 2 Live "The Rematch". Marquez vs Diaz 2 Live Stream this Saturday, July 31, 2010 from Mandalay Bay Events Center in Las Vegas and live online stream on your pc's and tv via Pay-Per-View. Don't miss the another fight of the year were their first face last year February 2009 was named Fight of the Year by numerous boxing organizations and media outlets. Watch Juan Manuel Marquez vs Juan Diaz 2 Live Online The Rematch!