Wisconsin OL struggled and then LG Joe Brunner provided a spark and a highlight

The Wisconsin offensive line struggled against Middle Tennessee on Saturday, particularly in the first half. They couldn't run block to save their lives, and they were only slightly better in pass protection. It didn't help that these exact players had never played together, but it was ugly. Then, towards the end of the half, left guard Joe Brunner did something that will be on offensive line coach AJ Blazek's film tape all week.

Brunner took his assignment, Brendon Harris, and drove him all the way through the endzone and then into the ground. A perfect example of finishing your block. That moment may not be what turned the line about completely, but it did seem like, from then on, things were slightly better.

Watch the highlight below (2 clips from multiple angles):

Wisconsin needs to figure out what to do with their offensive line

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You could see in the first half that Jeff Grimes was making adjustments to get the offense going, even though the line was struggling. In the second half, it seems that Joe Brunner was the one who set the tone with his incredible highlight. He wasn't going to let effort keep them from having a good day on the line.

By the end of the game, the only offensive lineman with a bad PFF score was Kerry Kodanko, a sixth-year player who was thrown into the starting lineup due to Jake Renfro's injury. He scored a PFF score of 42.6 overall. That's a failing grade.

The rest of the line had decent scores by the end, but it was mainly due to the second-half adjustments and focus. The two left tackles, Riley Mahlman and Emerson Mandell, scored the best with 76 and 73.1, respectively. Brunner finished with 64.8. Room to improve, but it may have been his effort that helped change the game.