White (sports hernia) started at first base and went 0-for-2 over six innings in Triple-A Tacoma's loss to Sacramento on Wednesday.
White kicked off his rehab assignment with a quiet day, but he apparently made it through his stint no worse for wear and will likely bump up to playing a full game soon. The once-promising prospect is likely to be optioned to the Rainiers once he's activated from the injured list, Ryan Divish of The Seattle Times reports.