Grandal went 3-for-5 with a grand slam and five total RBI in Sunday's spring win over the Rockies.
It was the switch-hitting catcher's third homer of the exhibition campaign, including one against a southpaw, who he has historically struggled against in his career. The Athletic reports that Grandal was tweaking his swing in an effort to increase his launch angle -- and in turn, increase his power output. Grandal was one of just six major-league catchers to reach the 20-homer plateau last season, and he appears poised to post another as long as he can stay ahead of Austin Barnes on the depth chart this year.