McMahon went 3-for-3 with a grand slam, an additional run scored and two walks in Friday's win over the Padres.
McMahon made his presence felt in the first inning, as he launched a bases-loaded blast off Ryan Weathers that set the tone for the rest of the game. The third baseman has hit safely in all but one of his last 10 games and is hitting an impressive .361 with a 1.017 OPS in that span.