From Lance McAlister‘s blog: (and reported here in a comment)
Today the Reds designated for assignment LHP Chris Hammond and recalled from Louisville LHP Brian Shackelford.
Hammond went 1-1, 6.91 in 29 relief apps for the Reds.
Shackelford went 1-0-1, 2.04 in 18 relief apps at Louisville…he is in second stint with the Reds this season…from 4/20-5/30 he went 1-0, 7.71 in 14 relief apps for Cin.
Reds management again shows itself willing to eat a contract. There will be a buyout for the mutual option for next year, I would assume.