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

Brad Keller continues to be a problem for the KC Royals

Brad Keller has nosebleed as Royals lose opener

How the Royals are changing their pitching staff, rotation

Keller allows only 4 hits, has RBI as Royals top Braves 2-0

Brad Keller unveils curveball at Royals camp

With top pitching prospects struggling in KC, Eldred's tenure with Royals needs to be examined – The Royals Reporter

Twins 10, Royals 7: Minnesota takes the long battle of hits and misses - Twinkie Town

Brad Keller unveils curveball at Royals camp

Royals rotation slims with Duffy, Singer placed on IL, Royals