As fatigue sets in on an Orioles roster that has battled its way to the top of the American League East, the club is nearing some reinforcements. On Sept. 1, Baltimore can add two players to its roster for the final month-plus of the regular season, supplying much-needed fortifications for both the pitching staff and lineup with the likelihood being the Orioles add one pitcher and position player each; even as rosters expand from 26 to 28, the limit on pitchers they’re allowed to carry increases by only one from 13 to 14. It’s plausible the Orioles use those extra roster spots in a relatively modest fashion, such as activating outfielder Aaron Hicks from the injured list and recalling a familiar reliever such as Bryan Baker, Joey Krehbiel or Logan Gillaspie.