The Marlins will designate Carlos Marmol for assignment, Clark Spencer of the Miami Herald tweets. The former Cubs closer signed with Miami in February, then pitched in 13 1/3 innings, posting an 8.10 ERA with 9.5 K/9 and 6.8 BB/9.
Marmol has always posted very high walk numbers, but free passes have become especially problematic for him from a stratospheric 16.0 K/9 in 2010 to 10.8 in 2013, and he hasn’t served as a closer since 2012. Both his fastball and his slider have declined in effectiveness over the years as well. He’s still just 31, though, and has good velocity, so teams will undoubtedly continue to be curious about him.