Bryan Mata of the Sea Dogs delivers a pitch in the first game of a doubleheader Tuesday at Hadlock Field. Mata, making his Double-A debut, pitched six innings, allowing five hits, one run and two walks. He struck out five in a 7-1 win.

PORTLAND, ME - JULY 2: Sea Dogs' Jeremy Rivera throws for a double play after forcing out Trenton Thunder's Gosuke Katoh at second. (Staff photo by Ben McCanna/Staff Photographer)

Sea Dogs shortstop C.J. Chatham fields a pop-up against Trenton Thunder.

Bryan Mata got a win in his first Double-A game. He struck out five in six innings.

Tate Matheny, left, and Jhon Nunez cheer on Brett Netzer after a three-run double by Luke Tender in the first inning.

C.J. Chatham of the Sea Dogs charges for third after a throwing error by the Trenton Thunder.