The Athletics outrighted Nevin to Triple-A Las Vegas on Friday, Martin Gallegos of MLB.com reports.
Nevin went 1-for-3 with a two-run double in a loss to the Mariners on Sunday.
Nevin went 1-for-4 with a solo home run in Thursday's 6-3 loss to the Astros.
Nevin started at first base in a loss to the Rangers on Saturday and went 0-for-3.
Nevin went 2-for-4 with an RBI groundout, a double and two walks in a win over the Mets on Thursday.
Nevin (migraine) will start at first base and bat eighth Saturday versus the Blue Jays.
Nevin (migraine) is out of the lineup for Friday's game against the Blue Jays.
Nevin was scratched from Wednesday's lineup versus the White Sox due to a migraine, Martin Gallegos of MLB.com reports.
Nevin started at third base in a loss to the Angels on Sunday and went 1-for-4 with a double and a run.
Nevin is not in the starting lineup for Saturday's game against Arizona.