Justin Duchscherer, who has been throwing, will get an injection in his left hip Wednesday. … Jeremy Guthrie (0.64) and Zach Britton (0.66) entered Tuesday ranked second and third, respectively, in the American League in ERA. … Right-hander Chorye Spoone (CCBC-Catonsville, Northeast) was transferred from Double-A Bowie to Triple-A Norfolk. … Triple-A left-hander Troy Patton will be placed on the minor league disabled list with a left shoulder strain but should miss only one or two starts, Orioles director of player development John Stockstill. Patton hurt his shoulder while fielding a bunt during his start Monday night against Gwinnett. … First base prospect Joe Mahoney remains day-to-day with a strained quadriceps. … Mitch Atkins, who wasn't able to pitch this spring because of an oblique injury, threw two innings in an extended spring game.