4 Red Sox perspectives on baseball's radically shifted rules landscape
What happened to Kenley Jansen? A look at the rules violations that triggered the Red Sox closer's blown save - The Boston Globe
Red Sox Closer Kenley Jansen as Good as Ever - Belly Up Sports
Alex Cora: Optimistic about Kenley Jansen adapting to MLB's pitch clock
Willson Contreras on Kenley Jansen's pitch clock violations
Red Sox closer Kenley Jansen, one of the slowest workers in baseball, says he will adjust to MLB's new pitch clock - The Boston Globe
Kenley Jansen introduced to pitch timer in Red Sox spring debut
MLB Pitch Clock Isn't Responsible for Ace Pitcher Struggles
New Red Sox closer Kenley Jansen will have to pick up the pace in 2023 – NBC Sports Boston
Why baseball's slowest pitcher is embracing the pitch clock
MLB Pitch Clock Isn't Responsible for Ace Pitcher Struggles
Red Sox closer Kenley Jansen earns 4th All-Star game selection as Boston's lone 2023 representative – Boston 25 News
How are MLB's slowest pitchers handling the pitch clock?
Red Sox closer Kenley Jansen, one of the slowest workers in baseball, says he will adjust to MLB's new pitch clock - The Boston Globe
How are MLB's slowest pitchers handling the pitch clock?