Setting the tone from the back for Atlas LC, Concannon enjoyed a dominant 2019 that saw him named a finalist for the Oren Lyons Goalie of the Year. Concannon was additionally named to the PLL All Star Team and won the game's MVP Award. Concannon is a Lindenhurst, New York native where he attended St. Anthony’s High School. While at Hofstra University, Concannon was named an USILA All-America Third Team selection, an All-ECAC Second Team selection, an All-CAA First Team selection and was named to the CAA Championship All-Tournament team. When not playing lacrosse, Concannon enjoys snowboarding, fishing and going to the beach.