It was more heartbreak for the struggling Gwinnett Braves in the opener of a four-game series against the Charlotte Knights on Saturday night at Coolray Field in Lawrenceville. The Knights broke a 1-1 tie on a passed ball charged to catcher J.C. Boscan in the eighth, then added three more runs in the frame against Cory Gearrin to capture a 5-3 win over the G-Braves. Boscan atoned with a two-run double in the ninth, but couldn’t prevent Gwinnett from extending their franchise-record losing streak to 15 games.