Daily News: The undercard to the Floyd Mayweather-Manny Pacquiao fight played out on Twitter, not in the ring. Two of the country’s most prominent female sports broadcasters, CNN’s Rachel Nichols and ESPN’s Michelle Beadle, sounded the alarm early Saturday when each tweeted that they had been banned from covering the fight and had their credentials yanked by Mayweather’s camp. But a spokesperson for the welterweight said the TV personalities had the story all wrong. “They have always been credentialed.”