Kansas City Chiefs’ second-year offensive lineman Kingsley Suamataia is under fire as his transition to left guard raises serious concerns. After limited action in the preseason—11 snaps in the opener and just 10 against Seattle—KSHB analyst Nick Jacobs delivered a scathing assessment of the former tackle’s performance. Jacobs believes Suamataia lacks the confidence, comfort, and, most critically, the ruthless mentality needed to dominate as an interior lineman in the NFL.
Drafted in the second round (63rd overall) out of BYU in 2024, the 6-4, 326-pound Suamataia was expected to bring versatility and power to the Chiefs’ offensive line. However, Jacobs isn’t seeing the ferocity required to handle elite interior defenders like Philadelphia’s Jordan Davis and Jalen Carter, whom the Chiefs will face in a daunting Week 2 matchup against the Eagles on September 14 at Arrowhead Stadium.
“I don’t see a mean streak with him that I want to see,” Jacobs said on 41 is the Mic podcast. “If you’re an offensive lineman, there’s a certain mentality you have to have. You have to be ruthless. You have to want to bury that defender in the ground every single play. Your mindset has to be, ‘This dude’s trying to take food from my family, and I’m going to bury him.’”
Jacobs’ critique paints Suamataia as more teddy bear than grizzly, a far cry from the “nastiness” embodied by teammates like right guard Trey Smith and center Creed Humphrey. Those two have set the standard for dominance on the Chiefs’ line, a standard Suamataia is struggling to meet.
The upcoming clash with the Eagles is shaping up to be a defining moment for Suamataia and the Chiefs’ offensive line. In last season’s Super Bowl, a 40-22 loss to Philadelphia, the Eagles exposed vulnerabilities in Kansas City’s interior line. Patrick Mahomes was sacked six times—his career-high in a single game—without the Eagles needing to blitz. This was a stark departure from the 2024 regular season, where Smith, Humphrey, and left guard Joe Thuney didn’t allow a single sack.
Suamataia, who was benched after starting the first two games of 2024 at left tackle, saw limited action as a reserve left guard in the season’s final game at Denver. With only 31 snaps in that meaningless contest, his experience at guard remains thin, amplifying concerns about his readiness for a high-stakes showdown.
Chiefs offensive line coach Andy Heck offered a more optimistic view, noting Suamataia’s growth in his second year. “I’ve definitely seen a better understanding of defenses,” Heck said Tuesday. “I’ve been pleased with how he’s taken to the run-game techniques at the guard position. It’s different than tackle where you’ve got so much more space. These guys are on you right now. He’s gotten better in that regard and is doing a nice job transitioning to pass-block techniques.”
While Heck sees technical improvement, Jacobs argues that technique alone won’t cut it. The analyst demands a transformation in Suamataia’s mindset—a shift from passive to predatory. “Trey Smith has it. Creed Humphrey has it,” Jacobs emphasized. “You can’t play passive-aggressive as an offensive lineman. You can’t be like, ‘Well, shucks; he got past me.’ You have to say, ‘No, you’re not touching 15 [Mahomes].’”
With the Eagles game fast approaching, Suamataia’s ability to adapt could determine his future as a starter. The Chiefs’ offensive line has been a cornerstone of their success, but cracks exposed in the Super Bowl and Suamataia’s shaky transition to guard threaten to undermine that foundation. If he can’t channel the relentless intensity Jacobs demands, Suamataia risks being relegated to the bench—or worse.