COLUMBUS — Ohio State sophomore wide receiver Carnell Tate went through the first round of pregame warmups, and the second round of pregame warmups. He dressed in pads and jogged through practice plays 30 minutes before kickoff with the rest of the starters, just like he does every week. But Tate didn’t play Saturday against Iowa. Ohio State held him out for the same reason it held out senior defensive tackle Tyleik Williams the previous two games, and left guard Donovan Jackson the two games before that. “Carnell was available,” Buckeyes head coach Ryan Day explained after a 35-7 win over the…