Infielder Ian Stewart was activated from the disabled list Friday, but the still rehabbing third baseman was optioned to Class AAA Iowa. He is still far from being major league-ready.
Class A infielder Rock Shoulders and Class AA left-handed pitcher Eric Jokisch were named the Cubs' minor league players of the month for April.
Shoulders, 21, hit .370 with 19 runs scored, seven doubles, five home runs and 16 RBI in 22 games. He was named Midwest League player of the week for April 15-21.
Jokisch, 23, went 3-1 with a 1.84 ERA in five April starts. He struck out 21 and walked six in 29 1/3 innings. He finished the month tied for fifth in the Southern League in victories and ninth in ERA.