Vasquez will start Tuesday's game against the Diamondbacks, Jeff Sanders of The San Diego Union-Tribune reports.
Vasquez will make his second start and fourth appearance since returning from the injured list July 19. The 27-year-old last appeared Friday against the Giants, logging 4.2 scoreless innings in relief. On the campaign, the right-hander owns a 4.45 ERA, 1.47 WHIP and 64:30 K:BB in 95 innings.