Raley was 5-4 with a 4.92 ERA at Iowa this season. He had his first major league experience in 2012. Raley was called up in August of last season and was 1-2 with an 8.14 ERA.
Putnam, who underwent an MRI on Wednesday, was 0-0 with an 18.90 ERA in five relief appearances before getting injured. The Cubs will eventually put Henry Rodriguez in the bullpen. Rodriguez has 72 hours to report to the Cubs. He was traded to Chicago Tuesday from Washington.