Grand slam does in Mustangs SALT LAKE CITY, Utah - Ger- but only two were earned. ard Giustino hit a grand slam and St. John, making his first start," Tony St. John and John Stuart com- held the Mustangs to one run on five. bined on a six-hitter as the Salt Lake hits before getting relief help from City Trappers downed the Billings Stewart. St. John struck out nine and Mustangs, 7-1, in Pioneer League walked one. Stewart gave up just one baseball Friday. hit over the last 2-3 innings. Giustino's grand slam, his fifth Mark Cerny had two triples for home run of the year, capped a five- the Mustangs and scored their only run second inning off Mark Bor- run. Steve Vondran, who also had two cherding, 2-3. Borcherding was re- hits, drove in Cerny with a fourth-insponsible for all seven Trapper runs, ning single.