Yusei Kikuchi posted his first win of the season and Jose Marmolejos hit a grand slam in the Seattle Mariners' 8-3 victory over the San Diego Padres in the second game of a doubleheader on Thursday.In his fifth start, Kikuchi (1-2) allowed three runs on seven hits over five innings with six strikeouts at Petco Park. He gave up a solo homer to Manny Machado in the bottom of the first.Related coverage:Baseball: Yamaguchi picks up 1st MLB win as Blue Jays down Red SoxBaseball: Twins' Kenta Maeda earns 4th win in solid outing against IndiansREAD FULL ARTICLE