Pirates appear to be shifting Mitch Keller into bullpen role — for
Mitch Keller controls his own future with Pirates more than ever
Mitch Keller pitches shutout vs. Rockies
Pirates bullpen lets down Mitch Keller in loss to Diamondbacks
Pirates' decision to lift Mitch Keller after 6 innings goes awry
How Mitch Keller aims to recapture his previous success in baseball
Mitch Keller pitches well in loss to Orioles, but questions on
Mitch Keller records 200th strikeout in Pirates' rout over Cubs
Now that Mitch Keller found his fastball velocity, he wants to
Pittsburgh Pirates: 4 Home Run Game Wasted as Mitch Keller