McFarland was optioned to Triple-A Norfolk prior to Sunday's game, Roch Kubatko of MASN Sports reports. McFarland has managed to maintain a 1.93 ERA over 9.1 innings out of the bullpen with the big club, despite posting an ugly 2.14 WHIP and 11:8 K:BB ratio. The poor peripheral numbers will result in him heading back to the minors, with Tyler Wilson arriving from Norfolk in a corresponding move to fill out the Orioles' bullpen.