Diamondbacks charged with solving Pirates ace Mitch Keller
Pirates pitching in flux, part 1: What's the club's plan to revive
Can Pirates' Mitch Keller find redemption in Opening Day start 4
Pissed off' Mitch Keller struggles again, but the Pirates are
Pirates' Mitch Keller dominates with ample strikeout stuff, Andrew
Pittsburgh Pirates pitcher Mitch Keller believes he's ready to
Mitch Keller's viral video highlights offseason work
Pirates' Mitch Keller making history - Bucs Dugout
Mitch Keller throws 100 mph, but will it net a long-awaited — and
Mitch Keller strikes out 10 as Pirates continue torrid pace - ESPN