Mickey Jannis is among the next generation of baseball players committed to mastering the increasingly endangered pitch.
Boston Red Sox Nation: October 2004
The Baseball Codes The Baseball Codes
Cy Young watch: Gerrit Cole, Luis Castillo favorites in American League - Sports Illustrated
AL Cy Young Candidates: Triston McKenzie and Logan Gilbert - The New York Times
Who were some of the most fun baseball players to watch, even though they weren't Hall-of-Famers? - Quora
Calvin Reed, WashingtonRP Wiki
Meet the MLB pitchers keeping the dying art of the knuckleball alive - Sports Illustrated
How hard is it to get a hit in baseball? - Quora
WILBUR'S KNUCKLER IS ALIVE AND SWELL - Sports Illustrated Vault