The Ensemble Studio Theatre & Alfred P. Sloan Foundation present Headstrong by patrick Link, directed by Wiliam Carden. Ex- NFL linebacker Duncan Troy played with the greats, and tackled them to the ground. When his son-in-law, a Pro Bowler himself, dies under strange circumstances, Troy and his widowed daughter struggle with their own culpability, and whether the brain trauma he suffered in life was the price of football greatness.