New Faces With Big Responsibilities On Chiefs Offensive Line

SÃO PAULO (Sept. 5, 2025) — The Kansas City Chiefs begin their NFL season overseas tonight, unveiling a revamped foundation on the offensive line: rookie Josh Simmons at left tackle and second-year guard Kingsley Suamataia anchoring left guard. The pair steps into roles critical for quarterback Patrick Mahomes’ protection, replacing a troubled 2024 duo that failed to provide stability. Simmons and Suamataia are charged with shoring up issues that helped contribute to a Super Bowl LIX loss.

Simmons, a first-round pick (32nd overall) from Ohio State, had shown top-tackle potential pre-draft but slid due to a torn patellar tendon suffered late in college. Still, his relentless work ethic and rehab impressed Chiefs personnel. He remained in Kansas City through spring break, ramping up recovery and proving his knee was sound enough to compete. In training camp, Simmons quickly earned the starting left tackle job, delivering impressive reps in practice and preseason, earning praise as a potential long-term protector for Mahomes.

Suamataia, in his second year with the Chiefs, made the switch from left tackle (where he started two games in 2024) to left guard. The former second-round pick (63rd overall) has spent training camp and preseason building chemistry with Simmons, adapting to his new spot inside. Coaches noted his improving technique and familiarity with NFL protection schemes, which earned him the starting role alongside Simmons.

The expectations are high. Both players must help atone for a left side that failed Mahomes last season, allowing a career-high number of sacks (36) and contributing to a Super Bowl loss where he was sacked six times under no blitz. Simmons is counted on to restore consistency at tackle; Suamataia’s move inside is designed to solidify the adjacent gap.

Their opening-night test won’t be easy. The Chargers bring a fierce pass rush, led by Khalil Mack and Tuli Tuipulotu, known for twist games and stunts designed to split protection schemes. Chiefs center Creed Humphrey may be asked to slide left to assist, but that risks exposure on the opposite side. Mahomes and the offensive line must hold their ground.

In training camp, both Simmons and Suamataia showed steady growth. Andy Reid, Mahomes and others noted their increasing communication and fewer mistakes under pressure. Their bond and ability to align under blitzes and movement has been building by the day.

Ultimately, this left side duo represents Kansas City’s attempt to correct a glaring flaw. If Simmons’ athleticism and rehab translate cleanly to the field, and Suamataia adapts smoothly to guard, Mahomes may finally have the protection he’s lacked. The results — starting tonight in São Paulo — could set the tone for whether the Chiefs’ offense returns to top form or continues to chase what it missed in 2024.