"We came close to taking him [instead of Kevin Gausman]," O's manager Buck Showalter said of the team's roster move for Wednesday. "Decided to let him have one more outing down there to make sure he's OK. Glad we didn't put him in harm's way up here."
Johnson, who has pitched parts of the part two seasons for the Orioles, has a 6.11 ERA in five starts for Norfolk this year.
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Facebook and Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.