Gray (back) is unlikely to be activated to start for the A's on Sunday, Jane Lee of MLB.com reports.
With Rich Hill (groin) getting skipped for his scheduled start Saturday and Kendall Graveman set to take his place, the A's have an opening in their rotation for Sunday. Although Gray is nearing a return from his back injury, he is scheduled to start at High-A Stockton on Sunday and there is no indication at this time that the Athletics will alter that plan. If Gray winds up starting at Stockton on Sunday, he could be in line to join the A's next weekend.