Crisp pinch-hit in the A's 10-9, 11-inning win, flying out to center field in the 10th.
Melvin stressed that it's just the hamstring that concerns the A's now, not the wrist Crisp injured last week. With a day off Thursday, it's also feasible Oakland would give Crisp two more days and wait until Friday to bring him back as a starter.
Partially as a result of Crisp not being available, an A's center fielder did not lead off Tuesday for the first time this season.
Catcher John Jaso got the call against Angels right-hander Garrett Richards, with center fielder Craig Gentry, Monday's No. 1 hitter, moving to eighth.
"Somebody's got to hit there, and he's an easy fit," Melvin said of Jaso, citing his career on-base percentage (.365) plus his hot hitting in Anaheim (.424, with six homers, including Monday's ninth-inning game-decider).