Orioles manager Buck Showalter will meet with president of baseball operations Andy MacPhail this weekend in Anaheim, Calif., to firm up plans for roster expansion Sept. 1. No final decisions have been made yet, but it looks that Chris Tillman will join the club but pitching prospect Zach Britton will not.

Again, this issue still hasn't been finalized, but that's the way things are leaning now. With a bunch of days off in September, Orioles officials don't want their starters going six or seven days between starts so there are only so many additions they can make to the roster.

Showalter said Britton still has two or three more starts to make for Triple-A Norfolk, which should take him close to his innings limit. Britton has logged 142 1/3 innings this season. His career high is 147 1/3.

Showalter said that if Britton were to come up, it's unlikely the Orioles would use him out of the bullpen, and the same is true for Tillman.

In other news, center fielder Adam Jones was in the Orioles' original lineup, but he was scratched as he continues to feel discomfort from his left shoulder contusion. Jones was hit by a pitch in Tuesday's series opener. Jones is having trouble doing everything right now, including running. It might still be a couple of days before his return, but Showalter is hopeful he'll be ready for tomorrow's series opener versus the Angels.

Orioles roving instructor Mike Bordick was down in Sarasota, Fla., to spend some time with first-round draft pick Manny Machado, and he gave really positive reports to Showalter.