A Second-Round Rookie Could Be Ushering in a New Era of Defense for Kansas City in 2026
The Kansas City Chiefs have a storied pantheon of defensive ends. Names like Tamba Hali, Neil Smith, Jared Allen, Art Still, and, although he was a linebacker, the incomparable Derrick Thomas, leap to mind for many a Chiefs fan when it comes to QB sacks. With his professional football career in its infancy, it’s much, much too early to place the name R Mason Thomas next to those hallowed standouts. Still, his performances so far in camp and the preseason have some in Chiefs Kingdom making comparisons. The second-round, 40th overall pick has been a dominant force this offseason and is trending strongly toward being a big answer to Kansas City’s lack of sacks last year. The Chiefs ranked 23rd in sacks in 2025, with 35, tied with Chicago, Dallas, and New England. The franchise’s solution was to draft heavily on defense, and it looks like it will pay off if Thomas continues to ascend, with more quarterbacks hitting the turf.
It was the proverbial cherry on top of what had been an outstanding preseason for the former Oklahoma Sooner. In the third and last preseason matchup at Arrowhead against the Seattle Seahawks, the Fort Lauderdale native used his explosive first step to beat a double-team. Thomas got to the outside shoulder of the tight end, hooked his inside arm under the Seahawk’s outside arm and got by him, then burst past the offensive lineman to reach quarterback Jalen Milroe for a sack, causing a fumble. He led the team with a 21.4 percent pass rush win rate against Seattle and through three preseason games had two total tackles, a sack, a forced fumble, and eight pressures. The explosive rookie seems capable of game-changing plays at any moment and has Kansas City fans buzzing and excited for the Chiefs defense this coming season.
The defensive end room will need to dial up more sacks than it did last year. With first-round pick defensive tackle Peter Woods crashing the interior with multi-All-Pro Chris Jones flushing quarterbacks out of the pocket, Thomas and George Karlaftis will have more opportunities for sacks. What’s special about the Oklahoma alum is the speed and ferocity in his first steps, as well as his ability to dip under taller tackles. He has a high-octane motor that stays humming through a rep. If the ferocious edge defender matches his preseason performance during the 2026 campaign and beyond, Kansas City’s sack woes of 2025 will be forgotten, and maybe, just maybe, that Chiefs pantheon will have room for one more.
