In previous years, Royals' Brad Keller would've junked this pitch. Now he utilizes it

MLB offseason tracker: Blue Jays add Chad Green to bullpen National News - Bally Sports

Brad Keller And His Fastball(s) Problem – The Royals Reporter

Is Brad Keller's time with the KC Royals done already?

Brad Keller continues to be a problem for the KC Royals

Royals hit 3 HRs off Javier, end Astros' 8-game win streak - Seattle Sports

What Should Austin Cox's Role Be On This Royals Pitching Staff? – The Royals Reporter

Kansas City Royals starting pitcher Zack Greinke smiles and looks at the scoreboard after getting Chicago White Sox's Jim Thome to swing at a pitch during the sixth inning of a baseball

Brad Keller has nosebleed as Royals lose opener

Should the KC Royals try to salvage Brandon Finnegan?

Kansas City Royals Activate Zack Greinke From Injured List, Scheduled to Start Thursday - Fastball