JJ Keller
JJ has been a sports fan for as long as he can remember. He began playing baseball when he was three for a team called The Griffey's, and loved it ever since. In addition to being a die hard Mariners fan -- for better or worse -- he likes looking at the game using analytics and data. He was a contributor at Sodo Mojo for over two years, helmed Statliners at it launch, and is now a contributor to Call to the Pen.
Follow him on Twitter @KJ_Jeller

Top Stories
- Kings of Kauffman 2 monthsGive Me a Number: FIP and the KC Royals in 2023
- Call to the Pen 2 yearsCore-five RBI: The frustrating search for a new MLB metric
- Call to the Pen 2 yearsMLB: How to strip sabermetrics of some of its power
- Call to the Pen 3 years2020 MLB Season: Use Solar Panels, Not Cardboard Fans
- Southside Showdown 4 yearsWhite Sox: Analyzing Rick Renteria's Lineups and Other Strategies

Newsletter
Sabermetrics news from FanSided Daily