Arizona Diamondbacks right-hander Keynan Middleton landed on the 15-day injured list Sunday with a foot injury.
The 29-year-old reliever has a sprained left big toe. He is 1-2 with a 5.29 ERA in 18 relief appearances this season.
The team recalled right-hander Luis Frias from Triple-A Reno in a corresponding transaction.
Frias, 24, is 1-0 with a 12.34 ERA in 10 appearances out of the Arizona bullpen this season.
–Field Level Media