Grandal (forearm) went 0-for-2 and caught for six innings for Triple-A Oklahoma City on Sunday, Bill Plunkett of the Orange County Register reports.
Grandal was sent to Triple-A Oklahoma City for a rehab assignment after starting the season on the disabled list. Holding up for six innings is a good indicator that he's ready to return to the major leagues, perhaps as early as Tuesday's game against the Diamondbacks.