Lot Detail - Jeremy Hefner 2012 Game-Used Mets Los Mets Jersey (MLB)
2012 September Collect the Mets
2012 December Collect the Mets
Neil Allen – Society for American Baseball Research
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Jeremy Hefner returning is first step in potential Mets pitching staff overhaul
New York Mets: How they started winning again despite decades of dysfunction - Sports Illustrated
New York Mets: Jeremy Hefner making an impression with analytical style
2013 Mets Media Guide, PDF, New York Mets
Mets pitching coach Jeremey Hefner returns for 2022
my clean summer skin care routine – Meg McMillin
Mets News: Mets to hire Jeremy Hefner as pitching coach - Amazin' Avenue
Mets pitching: David Peterson, Tylor Megill, the lab and who can help in the bullpen - The Athletic