The Orioles have placed right-hander Bud Norris on the 15-day disabled list with bronchitis and have called up right-hander Tyler Wilson from Triple-A Norfolk.
Norris -- who has been battling illness for nearly two weeks, first a stomach virus and now a case of bronchitis -- is the 11th different Orioles player to go on the DL in the season's first six weeks.
The move to place Norris on the DL is backdated to May 11, so he can be activated May 26. The Orioles will need an extra starter on May 28 for their doubleheader against the Chicago White Sox at Camden Yards, two games that were postponed due to the riots.
As Norris became further removed from his last start, a DL possibility became more likely. Orioles manager Buck Showalter said Norris has lost 8 to 10 pounds since getting sick, and he hasn't pitched in eight days.
Norris last pitched on May 10, lasting just 3 1/3 innings against the Yankees at Yankee Stadium while pitching through illness. His more recent bout with bronchitis forced him to be scratched from Sunday's scheduled start, which forced rookie right-hander Mike Wright from the bullpen to fill his place in the rotation.
The Orioles didn't want to move Norris to the bullpen, especially not knowing his immediate availability.
Norris, one of eight Orioles players currently on the disabled list, is 1-4 with a 9.88 ERA over six starts with the Orioles this season. The club also hopes that a DL stint can possibly help Norris reset from a rocky start to the season.
Wilson was the Orioles' minor league Pitcher of the Year last season. He enjoyed a breakthrough season that saw him go 14-8 with a 3.67 ERA in 28 starts between Double-A Bowie and Triple-A Norfolk.
The 25-year-old Wilson impressed the Orioles this spring with a spike in his velocity, hitting the mid-90s consistently. He allowed just one earned run over 14 Grapefruit League innings, pitching to a 0.64 ERA.
Despite a 2-4 record and 3.43 ERA at Triple-A Norfolk this season, Wilson has allowed two runs or fewer in five of his seven starts for the Tides. Four of those outings have been quality starts.
The Orioles had to make a decision whether to place Norris on the DL by 8 p.m. Monday because Wilson was allowed to be in Baltimore for just 24 hours without a move as part of the team's taxi squad.