How Red Sox closer Kenley Jansen rebuilt his mind and body to reach 400 saves - The Athletic
Red Sox All-Access: Kenley Jansen
Kenley Jansen 400 career saves
Jansen becomes 7th in major league history with 400 saves, Red Sox beat Braves 5-2
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Red Sox's Kenley Jansen records 400th save in Red Sox's win - ESPN
It wasn't how he envisioned it, but Kenley Jansen turned back the clock to notch 400th career save - The Boston Globe
Red Sox All-Access: Kenley Jansen
Category: Hall of Fame
Kenley Jansen - MLB Relief pitcher - News, Stats, Bio and more - The Athletic
Red Sox closer Kenley Jansen joins elite club with 400th save
Kenley Jansen 400 career saves