Chicago got Matt Guerrier back in the Carlos Marmol contract dump, but for a second straight season the veteran reliever is being shut down with elbow problems.
Guerrier has been placed on the 60-day disabled list, which means he won’t be eligible to pitch again this season and will hit the open market as a 35-year-old free agent with some major questions marks attached.
Guerrier pitched well for the Cubs, tossing 12.2 innings with a 2.13 ERA, but he’s been limited to a total of just 56.2 innings since the beginning of last season after once being among the most durable relievers in baseball.
The Diamondbacks announced that the club optioned starter Matt Koch to Triple-A Reno after Tuesday night’s game. According to Nick Piecoro of Azcentral Sports, Shelby Miller will likely be activated from the 60-day disabled list to start against the Marlins on Monday.
Miller, 27, has been out since late April of 2017 after undergoing and rehabilitating from Tommy John surgery. The right-hander has had a rough time since coming to the Diamondbacks in a trade with the Braves, starting 24 games since the beginning of the 2016 season with a 5.78 ERA and a 90/54 K/BB ratio in 123 innings.
That trade, consummated on December 9, 2015, is certainly one the D-Backs would like to take back. They received Miller and Gabe Speier from the Braves and gave up Ender Inciarte, Dansby Swanson, and Aaron Blair.
Koch, 27, made 12 starts and one relief appearance this season, compiling a 4.40 ERA with a 38/17 K/BB ratio in 71 2/3 innings.