Army’s Mack O’Halloran is a big, developmental interior piece with upside
Mack O’Halloran enters the 2026 season as a junior offensive lineman at Army, listed at 6-3, 301, with a background that includes All-State honors in football and track at Downers Grove South and time at USMAPS. He has not appeared in a game yet, so the appeal is projection: a thick, athletic frame, positional flexibility from his earlier tight end listing, and the kind of discipline and grind Army loves up front. If you want a tough, developmental line prospect rather than a finished product, he’s a credible fit.
