NFL-National Football League roundup

July 12 (The Sports Xchange) - Pittsburgh Steelers linebacker James Harrison has denied ever taking performance-enhancing drugs and said he never has met or had communication with Charles Sly. In a sworn affidavit submitted to the NFL by the NFL Players Association, Harrison refuted allegations made in an Al Jazeera America documentary, "The Dark Side," which said he used PEDs supplied by Sly, an intern pharmacist. "As a professional athlete, I have met thousands of people during my career," Harrison wrote in the affidavit, "but to the best of my knowledge and recollection, I have never met with the individual who is apparently named Charles Sly. ..." - - Cleveland Browns running back Isaiah Crowell called the city's chief of police and apologized for an Instagram post last week that sent shock waves through the Browns' organization. Crowell's Instagram post showed an illustration of a police officer having his throat slashed by a hooded figure. - - The Green Bay Packers signed rookie running back Brandon Ross on Tuesday. Ross was not drafted after playing at Maryland. The Minnesota Vikings signed him and then released him on May 23 after just three weeks.