SportsNewser 24/7 Mayweather/Ortiz Debuts Aug. 27 On HBO By Marcus Vanderberg on Jun. 28, 2011 - 4:44 PM HBO’s 24/7 is returning for its tenth boxing installment on Aug. 27 with 24/7 Mayweather/Ortiz. The four-episode, all-access series will follow Floyd Mayweather and Victor Ortiz as they prepare for their Sept. 17 showdown fr ...