Joey Votto heading out on rehab assignment

Reds first baseman Joey Votto will head out on a rehab assignment, according to MLB.com.

Votto will travel to meet Triple-A Louisville Saturday, and play in his first rehab game Sunday. He's been out since May 15 due to a knee injury. Votto was hitting .257 over 136 at-bats prior to the issue.

Manager Bryan Price would not say how many games Votto will need before he's ready to return, according to the Cincinnati Enquirer.