Boxing: Antonio Margarito, who lost to Shane Mosley Saturday night, is being investigated for a foreign substance that was found under his hand wraps. It may have been concrete. “When the tape was unwrapped, Richardson pointed out two pads inside one of the hand wraps that appeared wet and laced with “flecks” of a substance that appeared to be like ‘Plaster of Paris,’ Mosley’s attorney Judd Burstein said Saturday night. Mosley’s promoter, Richard Schaefer, saw a cellphone photo of the stained wraps and said the substance appeared ‘gray,’ like ‘concrete.’” (LA Times)