NBA star Charles Barkley was arrested on suspicion of DUI early Wednesday morning in Arizona, TMZ reports. Barkley, 45, was stopped by the Gilbert Police Department at a DUI checkpoint. His blood was tested by a mobile DUI task force on the road. See photos of the most unforgettable celeb mug shots of all time! After his arrest, he was released and took a taxi home. Named on the 50 …