IronPigs reliever J.D. Hammer better prepared for next chance with Phillies thanks to better offspeed pitches and a stronger mental approach. - The Morning Call
Phillies have coronavirus issues again after placing Bailey Falter and J.D. Hammer on COVID-19 list
Phillies call up J.D. Hammer, place Odubel Herrera on injured list | RSN
Phillies select JD Hammer, place Odúbel Herrera on IL – Phillies Nation
IronPigs reliever J.D. Hammer better prepared for next chance with Phillies thanks to better offspeed pitches and a stronger mental approach. - The Morning Call