Vaughn is out of the lineup for Tuesday's game against the Reds.
Vaughn was included in the lineup in the Brewers' last four games and went 3-for-13 with a pair of extra-base hits and a walk during that stretch, but all but one of those starts came against left-handed pitchers. The 28-year-old remains stuck in more of a part-time role versus righties, with Milwaukee typically prioritizing Jake Bauers at first base and Christian Yelich at designated hitter over Vaughn in those matchups.