“This is the dojo here. This is all our stuff,” says Erik Ostberg, gesturing toward two open duffel bags stuffed with gear that spills onto the floor. He clears off two metal chairs for Jack Power and me, then takes a seat behind the desk at Complex Sports Academy (Plex) in East Longmeadow. Ostberg, 27, and Power, 20, settle in and sip their Reign energy drinks. Last night was a late one in the cage.

The two Northampton-born athletes have lived and breathed baseball since they could wield a bat. Now Ostberg is a bona fide Major Leaguer, Power a Division I rising star. When they aren’t playing with the Tampa Bay Rays or the Long Island University Sharks, Plex is their home.