It wasn't how he envisioned it, but Kenley Jansen turned back the clock to notch 400th career save - The Boston Globe
How Red Sox closer Kenley Jansen rebuilt his mind and body to reach 400 saves - The Athletic
Why one passing Kenley Jansen comment said so much
Kenley Jansen Thanks Former Dodgers Pitching Coaches & Staff After Reaching 400 Career Saves
Kenley Jansen introduced as Red Sox' new closer: 'When you come to Fenway … you feel like a kid again' - The Boston Globe
Kenley Jansen Thanks Former Dodgers Pitching Coaches & Staff After Reaching 400 Career Saves
Kenley Jansen on 400th Career Save
MLB The Wild shamrock
Red Sox sign closer Kenley Jansen to 2-year, $32M deal
Kenley Jansen records milestone, earns 400th career save
On the day the Red Sox introduced Kenley Jansen, a lot of the questions were about how Xander Bogaerts got away - The Boston Globe
MLB The Wild shamrock
Red Sox sign RHP Kenley Jansen: What he brings to the bullpen
I don't want to be sitting at home in my 30s': Braves closer Kenley Jansen reveals epic Mariano Rivera goal