The Kansas City Chiefs have quietly added a gem to their roster, signing LSU guard Josh Thompson as an undrafted free agent following the 2026 NFL Draft. While he wasn't among the 257 players selected, Thompson brings starting experience and impressive tape that could make him a steal for the defending AFC champions.
Thompson's journey to the NFL is a story of steady improvement. He spent two seasons as a starter at Northwestern, splitting time between right tackle and right guard, before transferring to LSU for his final collegiate campaign. What stands out most? He didn't allow a single sack in either 2024 or 2025 — a remarkable feat that speaks to his discipline and technique in pass protection.
At 6'4" and 307 pounds, Thompson doesn't have the ideal mass or arm length scouts typically look for in an NFL guard. Some analysts even suggest a move to center could benefit his long-term prospects. But before considering that switch, Thompson has earned the right to compete at guard. His low pad level in pass protection and quick, explosive footwork allow him to mirror pass rushers effectively. He adjusts smoothly to redirect blitzers and has the recovery speed to bounce back from an early loss at the line of scrimmage.
Where Thompson needs refinement is in his hand usage and strike timing. These areas contributed to some of his biggest struggles in college. When his technique is sharp, however, he strings together impressive blocks that mask his average anchor strength. In the run game, his lack of mass is more noticeable, but he compensates with smart angle blocking and the ability to operate on the move.
Thompson joins a Chiefs undrafted free agent class that includes Cincinnati wide receiver Jeff Caldwell and Wyoming tight end John Michael Gyllenborg — all players with the potential to push for practice squad spots or even crack the 53-man roster. For a team that prides itself on developing talent, Thompson's combination of versatility, quickness, and zero-sack production makes him a name to watch when training camp begins.