For all of his struggles through 10 major league starts, Orioles rookie Kyle Bradish has learned something about himself in the process. “That I am capable of pitching in the big leagues,” the 25-year-old right-hander said Saturday gave up six runs in Baltimore’s series-evening 7-6 loss to the Tampa Bay Rays. The outing marked the sixth time in seven starts in which Bradish failed to complete five innings.