Athletics outfielder Yoenis Cespedes experienced more hamstring tightness during Saturday's loss to the Mariners, the San Francisco Chronicle reports. Cespedes is expected to serve as a designated hitter during Sunday's series finale at Safeco Field.

Cespedes is hitting .249 with 14 homers and 56 RBI in 349 at-bats. The injury is not expected to impact his status in this year's Home Run Derby.

Add CBS Sports on Google