The bullpen merry-go-round continues.
The Cubs have added another lefthander to the bullpen Sunday. Kyle Ryan was recalled from Triple-A Iowa.
Cory Abbott, who threw 65 pitches Saturday, was optioned to Iowa. To make room on the 40-man roster for Ryan, Robert Stock was designated for assignment.
Ryan begins his fourth stint with the Cubs this season and has no record with a 3.38 ERA in three relief appearances, walking two and striking out two....