Kent Mercker is heading back to the DL and the Reds called up 5’7 and 140 pound Danny Herrera to take his spot. Herrera is the other player from the Josh Hamilton/Edinson Volquez trade. He was recently promoted to AAA and he has been pretty much lights out there for the Bats. He posted a 1.27 ERA and a 0.84 WHIP in 21.1 innings.