Sledge hit his sixth home run of spring training and the Padres beat the Arizona Diamondbacks 7-6 in a split-squad game Saturday.Matt Antonelli's three-run shot capped a seven-run seventh inning for San Diego."I'm happy I was able to come through," said Antonelli, a first-round pick in last year's draft out of Wake Forest. "The pitcher fell behind 3-0, so I knew I'd get a good pitch to hit."Rookie outfielder Will Venable, son of former big leaguer Max Venable, had a two-run single.Six runs in San Diego's big inning were charged to Doug Slaten. Right-hander Mike Thompson started for the Padres and went four innings, allowing two runs -- one earned.Arturo Lopez was the winning pitcher and Mike Ekstrom worked the ninth for the save.The game was played before a crowd of 5,847 in Yuma, the Padres' spring training home from 1969-93 before they moved to Peoria.