Desmond crushed Padres righty starter Jered Weaver's 0-1 changeup into the left-field seats for a two-run shot in the first. Desmond repeated the feat while leading off the fifth by turning a first-pitch curveball into a souvenir.
The Rockies signed Desmond, 31, for five years and $70 million with the idea of converting him to first base. Desmond broke in as a shortstop with the Nationals late in 2009 and quickly became the primary shortstop through '15, with an All-Star Game trip in '12. He signed with the Rangers last season, began in left field, moved to center and found himself in another All-Star Game.