New York Mets’ rookie right hander Robert Gsellman uses his arm and his bat to help beat the Milwaukee Brewers 4-2 on Memorial Day at Citi Field. Gsellman gave up two runs — one earned — in seven innings, surrendering just three hits and two walks, as he struck out five while Milwaukee hitters grounded out in 12 of their final 17 at bats against him. Gsellman also drove in two of New York’s runs with a sacrifice fly and a walk with the bases loaded, improving his record to 3-3. Matt Garza dropped to 2-2, giving up just two hits and one walk before the fifth inning when the Mets scored three times. Domingo Santana homered and singled for the Brewers, who lost their first game to the Mets in four tries this season but kept their one and one half game lead on both the Cubs and Cardinals in the National League Central.