The Rockies have designated left-handed reliever Mike Dunn for assignment, per a team announcement. His 25-man roster spot will go to infielder Pat Valaika, whom the Rockies recalled from Triple-A Albuquerque.
The 34-year-old Dunn’s DFA will conclude what has been a disastrous stint on Colorado’s 40-man roster for the longtime major leaguer. After Dunn enjoyed a mostly successful run with the Marlins from 2011-16, the Rockies signed him to a three-year, $19MM guarantee heading into the ’17 campaign. Since then, though, Dunn has limped to a 5.93 ERA/5.01 FIP with 8.89 K/9 and 5.51 BB/9 in 85 innings. Last Friday, in what may go down as his final appearance as a Rockie, Dunn allowed four earned runs on four hits (including a homer) in just a third of an inning during a loss to the Padres.
Not only has Dunn failed to produce with the Rockies, but he hasn’t stayed healthy as a member of the club. He sat out a large portion of last season with an AC joint issue that required surgery and missed time this month with an injury in the same area. The Rockies still owe Dunn upward of $4.9MM (including a $1MM buyout for 2020), but it appears they’ll have to eat that money.