Rays DFA Jumbo Diaz, promote Andrew Kittredge
The Rays decided they had seen enough of RHP Jumbo Diaz, designating him for assignment after Sunday's 4-3 loss.
To take his place, they are summoning RHP Andrew Kittredge, who will make his big-league debut.
Kittredge, 27, was acquired from the Mariners in the November 2016 deal that sent INFs Taylor Motter and Richie Shaffer west, and has been doing very well at Triple-A Durham, going 5-1, 1.90 with 54 strikeouts in 52 innings.
Diaz, who took the loss Sunday after allowing a one-out single in the eighth, was 1-4 with a 5.70 ERA over 31 games.