DENVER (AP) - Yasmani Grandal and Alexi Amarista each homered twice, leading Edinson Volquez and the San Diego Padres over the Colorado Rockies 8-4 on Saturday night.

Grandal, called up from Triple-A before the game, made his first big league start memorable by homering for his first two hits in the majors.

Grandal, who had one at-bat in his debut four weeks ago, hit a solo home run in the fourth off Christian Friedrich. Grandal sent a two-run shot in the sixth into the left-field bleachers off Jereremy Guthrie (3-7) for a 3-2 lead.

Volquez (5-7) gave up one earned run and three hits in six innings.