Brian Matusz (strained left intercostal) will start for Single-A Frederick on Monday and likely pitch for Triple-A Norfolk on May 21. If all goes well, he could return to the Orioles' rotation after that.
Orioles manager Buck Showalter said he wants to keep Robert Andino in the mix, which is the reason the normal infielder is starting in left field tonight.
The Orioles are scheduled to face five right-handed starters on their road trip, allowing Showalter to work outfielder Felix Pie into the lineup more.
A day after staying home with the flu, Nick Markakis is tentatively back in the Orioles' lineup. Showalter called over to Mariners manager Eric Wedge to tell him that it's not definite that Markakis plays. The right fielder is going to take batting practice and see how he feels before declaring himself ready.
Pitching coach Mark Connor will be away from the team for the next two games to attend his son's graduation at the University of Tennessee law school. Bullpen coach Rick Adair will serve as pitching coach, and minor league pitching coordinator Alan Dunn has joined the club to serve as bullpen coach. Dunn was the bullpen coach under former manager Dave Trembley.