GURABO, Puerto Rico — By first pitch, the parking lot outside Evaristo “Varo” Roldán Stadium was jammed. Inside, the Criollos de Caguas, the defending Roberto Clemente Professional Baseball League and Caribbean Series champions, were seeking their third straight win against the Gigantes de Carolina. It was a Monday afternoon earlier this month, but it didn’t feel like one. Music pulsated. Beer vendors sold cans of Medalla Light out of paint buckets.