GREEN RIVER — The Green River Knights’ postseason run came to a heartbreaking end Sunday evening. Green River, which had battled through the loser’s bracket with back-to-back elimination-game victories, finished its tournament run one win shy of playing for the state championship. After Green River went down in order, the Mustangs strung together five singles and capitalized on a Green River error to score four runs. Travin Brown doubled in the fifth for the Knights, but Green River struggled to generate offense against Lovell’s pitching. Trailing 4-1 entering the seventh inning, Green River was down to its final three outs.