In this episode of “In the Trenches,” Ellison Hubbard breaks down why grit is a special skill defensive lineman must possess for success. Then he talks about how Aaron Donald has grit and how he uses that in some of his best plays in the season. Hubbard digs deeply into Donald’s record and how it impacted his team. He also covers what allows Donald and his contemporaries to overcome offensive lines and what their best line-ups might be.