Fermin will start at third base and bat eighth in Sunday's game against the Rockies.
Fermin will be included in the lineup for the sixth time in seven games, with four of his starts during that stretch coming against right-handed pitching. He could be emerging as the Cardinals' preferred option at third base while rookie Blaze Jordan (122 wRC+ versus lefties, 52 wRC+ versus righties) has struggled against same-handed pitching this season.