Dellin Betances Is Back. Yankees Hope His Fastball Returns, Too. - The New York Times
Yankees eliminated: Aaron Judge says 2019 season was a 'failure'; here's how their offseason can be a success
Dellin Betances Statcast, Visuals & Advanced Metrics, MLB.com
NY Yankees reliever Dellin Betances upbeat, despite early struggles
2014 Season Preview: New York Yankees - MLB Daily Dish
The Dellin Betances experiment needs to be shut down - Pinstripe Alley
New York Yankees: Bullpen struggles stem from too much pressure
New York Yankees: 2017's bullpen may be better than 'No-Runs DMC
Yankees' Betances Escapes Trouble, and Pineda Picks Up 10th Win - The New York Times
The Relief Ace: Where Dellin Betances's Season Ranks Historically, and What It Teaches Us About Bullpen Strategy