The Orioles are giving Hardy's hamstring an extra day to heal. No idea what's going on with Wieters, who didn't play yesterday morning following a night game.
Adam Jones is 10-for-21 during a five-game hitting streak.
McFarland, 24, has posted a 1.84 ERA in 14 2/3 innings, walking four and striking out 18 in three starts.
For the Orioles
Nick Markakis RF
Nelson Cruz LF
Chris Davis 1B
Adam Jones CF
Steve Clevenger C
Delmon Young DH
Ryan Flaherty SS
Jonathan Schoop 3B
Steve Lombardozzi 2B
Miguel Gonzalez RHP
Third baseman Manny Machado received five at-bats today as the designated hitter in an extended spring training game and he remains on track to begin an injury rehab assignment later this week.
Machado played five innings at third base on Saturday and seven innings at third yesterday.
Here are the pitching matchups for the three-game series against the Royals at Camden Yards:
Friday - Ubaldo Jimenez versus Yordano Ventura
Saturday - Wei-Yin Chen versus Jeremy Guthrie
Sunday - Miguel Gonzalez versus James Shields
Also, left-hander Anthony Vasquez moves up from Double-A Bowie to Triple-A Norfolk and is starting tonight for the Tides. Left-hander Troy Patton joins Norfolk to begin his rehab assignment.