Vasquez covered 4.2 scoreless innings out of the bullpen in Thursday's 4-1 loss to the Giants, striking out a batter while allowing three hits and one walk.
Vasquez got the start in his previous appearance but worked in tandem with JP Sears, pitching the first 2.2 innings before the lefty came on to cover the next 3.1 frames. The two essentially swapped roles Thursday, with Sears starting and yielding three earned runs over 3.2 innings before Vasquez entered in the top of the fifth to mop up. Sears and Vasquez may end up piggybacking again the next time through the rotation Tuesday in Arizona, though the makeup of the San Diego pitching staff could have changed by Monday's trade deadline.