Alfaro went 1-for-4 with a solo home run in Sunday's 10-5 victory against the Diamondbacks.
Alfaro went back-to-back with Jurickson Profar in the second inning to stake San Diego to an early 5-0 lead it wouldn't relinquish. The former Marlin is splitting time behind the dish with Austin Nola but has performed well thus far, going 3-for-8 with a double and home run in two games.