MIAMI BEACH, Fla. (AP) — Authorities say mixed martial artist and boxer Conor McGregor has been arrested in South Florida for stealing the cellphone of someone who was trying to take his photo. According to a Miami Beach police report, the 30-year-old McGregor was arrested Monday afternoon and charged with robbery and criminal mischief. The report says McGregor was leaving the Fontainebleau Miami Beach shortly after 5 a.m.