BALTIMORE - Struggling right-hander Bud Norris has been placed on the 15-day disabled list by the Baltimore Orioles with bronchitis.

The move, announced Monday, is retroactive to May 11.

Norris is 1-4 with a 9.88 ERA. He was scratched from his scheduled start Saturday.

The Orioles have recalled right-hander Tyler Wilson from Triple-A Norfolk to fill out the pitching staff. The 25-year-old has not yet pitched in the major leagues.

Wilson went 2-4 with a 3.43 ERA in seven starts with Norfolk this season. In 95 career starts over five minor league seasons, Wilson is 34-28 with a 3.71 ERA.

He was named the Orioles' minor league pitcher of the year in 2014.