Gasper (groin) went 0-for-1 as a pinch hitter and played the final inning as the catcher in Tuesday's 6-1 loss to the Blue Jays.
With two outs and two runners on in the eighth inning, Gasper pinch hit for starting catcher Connor Wong but struck out against Toronto closer Louis Varland. That Gasper could operate behind the plate -- even for only one inning -- indicates he could rejoin Boston's starting lineup Wednesday after opening the last two games on the bench.