The Orioles could opt to use Kevin Millwood for Thursday's series finale at home versus Seattle, or Jeremy Guthrie. Because of Monday's offday, both pitchers, who are starting the doubleheader games today, would be on four days rest for Thursday's start.
At this point, the Orioles are leaning toward bringing back Millwood on Thursday opposite Mariners ace Felix Hernandez, and then starting Guthrie on Friday against the Cleveland Indians.
The reason for that is Millwood pitched on five days rest for his April 27 start against the New York Yankees. So it appears to be Guthrie's turn for the five days rest.