The Orioles placed struggling starter Rich Hill (shoulder tendinitis) on the 15-day disabled list on Wednesday to accommodate rookie pitcher Chris Tillman on the 25-man roster. Tillman will make his major league debut tonight against the Kansas City Royals. UPDATE: Rich Hill is now saying it's a torn labrum, and that it was discovered around the first of the year. He wanted to try and pitch through it. There's a lot more to this story than what The Sun has put forth thus far. Hill, who is 3-3 with a 7.80 ERA, has done little to justify his spot in the Orioles rotation as he's failed to go at least five innings in seven of his 13 starts. After his last start on Monday in which he allowed three earned runs and lasted just 2 1/3 innings against the Royals, Hill complained about some discomfort in his shoulder.