The Athletics placed Ruiz on the 10-day injured list Thursday with a strained left wrist, Martin Gallegos of MLB.com reports.

EDGE Analysis

It's not clear when or how Ruiz suffered the injury, but he'll be sidelined for at least the next week and a half. Ruiz had made just two starts over Oakland's last 13 games and is only 2-for-19 with 10 strikeouts at the plate in May.