2. The biggest roadblock. If the Orioles want to take two of three from the Royals, Chris Tillman can't have a repeat of his last start, when he allowed seven runs on seven hits and a walk in one inning. He had seemed to be on the way up with one hit allowed in seven scoreless innings April 27. If he can recapture that to bounce back from his May 3 loss to the Los Angeles Angels, he'll give the Orioles a chance.