Barcelos, who was ahead on the scorecards when he lost consciousness in the fifth round of his Sept. 26 main event against Raul Rosas Jr. (official result: TKO, Round 5, 1:38), said this week doctors still have not determined what happened and that he is awaiting results from another MRI. He said retirement “hasn’t been ruled out,” though he does not want to stop and feels better every day.