EUGENE, Ore. — No. 2 Ohio State lost both redshirt sophomore right guard Tegra Tshabola and redshirt junior left tackle Josh Simmons to injury in the first half of a Week 7 matchup at No. 3 Oregon. Tshabola went down on a 53-yard run by running back TreVeyon Henderson late in the first quarter. Then, on a 3rd-and-9 during the following Buckeyes offensive series, Simmons took a tumble while blocking Oregon outside linebacker Matayo Uiagalelei. Simmons appeared to grab his left knee after hitting the turf of Autzen Stadium. He was eventually carted off the field. Redshirt freshman Austin Siereve…