Cubs place Rafael Soriano on DL with shoulder inflammation

PITTSBURGH -- The Chicago Cubs placed right-handed reliever Rafael Soriano on the 15-disabled list Wednesday because of inflammation in his right shoulder.

Left-hander Clayton Richard signed as a free agent, two days after being designated for assignment, and will work out of the bullpen.

Soriano, who has 207 saves in his career, is 2-0 with a 6.35 ERA in six games for the Cubs after signing as a free agent June 9.

"This will give him a chance to get right and then come back strong in September," Chicago manager Joe Maddon said.

Richard elected to become a free agent after being designated then re-signed with the Cubs. He was 2-0 with a 4.29 ERA in four games for them, including three starts.

The Cubs have 39 players on their 40-man roster.