Diego Castillo: Everything you need to know

The Rockies signed Castillo to a minor-league contract Thursday that includes an invitation to spring training, Aram Leighton of Just Baseball reports. Castillo, who turns 31 in January, has made just 15 appearances at the major-league level over the past two seasons, holding a 4.34 ERA and ugly 13:15 K:BB in 18.2 innings. The veteran reliever's stuff has deteriorated since his stint with the Rays, but the Rockies will take a look in camp to see what he might have left.

Castillo was designated for assignment Sunday. He loses his spot on the 40-man roster on the final day of the season and will be a free agent this offseason. Castillo walked more batters (eight) than he struck out (six) in the big leagues this season and last recorded a save in 2022 with Seattle.

The Twins recalled Castillo from Triple-A St. Paul on Saturday. Castillo has appeared in six games for the Twins this season, surrendering two earned runs across eight innings while striking out four batters and walking seven. He'll now come up from the minor leagues to give Minnesota's bullpen a fresh arm, taking the place of Kody Funderburk, who was optioned to Triple-A.