Fitness coach Alper A. is fond of posting pictures of his clients on Instagram, typically the classic “before and after” shots that showcase his success stories. The most recent one, featuring Mesut Özil, a former Germany national football team star, has caused a stir, however. The two men stand side-by-side proudly flaunting their toned stomachs after an apparently successful training program.
But it is the tattoo visible on the left side of Özil’s chest that is at the center of…