I'm not sure how this one got posted on Sickles before here but it's time to rectify that situation.  Chris Tillman will allegedly be up Wed to start.

They didn't officially confirm who would be up but they did say

 Orioles manager Dave Trembley wouldn't officially announce Tillman as Wednesday's pitcher, but he said the club will call up somebody from the minors to make that start and who it is won't come as a surprise. It has been speculated for weeks that the major league debut of Tillman, who is 8-6 with a 2.70 ERA for Triple-A Norfolk, is imminent...Trembley said the Orioles have no plans to go with a six-man rotation, and he expects Wednesday's starter to remain with the club.

http://www.baltimoresun.com/sports/orioles/bal-osnotes725,0,5713223.story

Modified in order to put the blockquote up in HTML view