From the Reds:

The Reds today placed on the 15-day disabled list, retroactive to Tuesday, LHP Kent Mercker (lower back pain) and recalled from Class AAA Louisville LHP Bill Bray (#45)...will be Bray's second stint with the Reds this season...from 4/28-5/4 he didn't allow a run in 4 apps for Cin...overall at Louisville Bray went 0-0, 3.00 with 1 save in 9 relief apps (9ip, 6h, 3er, 5bb, 15k, 1hr).