ESPN senior NFL analyst Chris Mortensen will be off the air as he begins treatments for throat cancer. "More than a week ago, I was diagnosed with a Stage IV throat cancer," Mortensen said in a statement Friday. "My focus shifted significantly to gathering information about the specifics of this cancer. The initial diagnosis was confirmed Friday and there is another test remaining that will determine the best possible treatment plan that will commence in the very immediate future. "Consequently, with the support and encouragement from ESPN president John Skipper and many others at ESPN, I am temporarily stepping away...