Full Breakdown
Mahomes Set to Start Week 1 vs. Broncos After ACL/LCL Recovery
9/9/2026, 1:35:59 AM
Core Event: Mahomes cleared for the season opener
Chiefs head coach Andy Reid confirmed that quarterback Patrick Mahomes will be the starter for Kansas City’s Week 1 matchup against the Denver Broncos on Monday Night Football, scheduled for September 14 at Arrowhead Stadium.
Background & Context: 2025 injury and its impact on the Chiefs
Mahomes suffered a torn ACL and LCL in his left knee on December 15 2025 during a Week 15 loss to the Los Angeles Chargers, ending his season and contributing to the Chiefs’ 6-11 record, their first losing season since 2012. The Broncos captured the AFC West that year with a 14-3 record, ending Kansas City’s nine-year division streak.
After surgery the next day, Mahomes completed a nine-month rehabilitation program, was cleared for all football activities in late July 2026, and participated fully in training camp, though he sat out every preseason game as a precaution. His return coincides with uncertainty at left tackle; Josh Simmons is dealing with a back injury, with his status reported on September 5 as “not trending well.”
Data & Statistics: Mahomes’ recent production
In the 2024 season Mahomes appeared in 14 games, throwing for 3,587 yards, 22 touchdowns and 11 interceptions while completing 62.7 % of his passes. He entered the 2026 campaign at age 30, heading into his tenth NFL season.
Official Statements & Responses
Broncos head coach Sean Payton said the team is preparing for Mahomes “at his best,” rejecting any game plan that assumes limitations from his injury. Payton also highlighted the importance of defending against the Chiefs’ revamped offense, now featuring running back Kenneth Walker III, signed to a three-year, $43 million deal after a 1,027-yard season with Seattle.
Defensive analyst Tim Grunhard noted that the Broncos’ pass rush, led by linebacker Nik Bonitto (career-high 14 sacks in 2025), will test the Chiefs’ protection, especially if Simmons is unavailable. Broncos linebacker Alex Singleton, who returned from an ACL tear nine months after his own surgery, expressed confidence that Mahomes will be “100 %” and ready to play.
Verbatim Quotes
- “Pretty good chance that Patrick will go ahead and start unless something were to come up here in the next couple days, but most likely he'll be the guy that's out there,” — Andy Reid, Chiefs head coach
- “We have a ton of respect obviously for Andy, his staff and what they’ve accomplished,” — Sean Payton, Broncos head coach
What’s Next: Upcoming challenges and key matchups
The Chiefs enter the season as 2½-point favorites, but the left-tackle situation remains a variable. If Simmons cannot play, rookie Kahlil Benson or veteran Jaylon Moore may line up at left tackle, potentially exposing Mahomes to the Broncos’ elite pass rush. Denver’s defensive coordinator Vance Joseph is expected to emphasize quick pressure, forcing Mahomes to release the ball early.
The outcome of this Week 1 clash will set the tone for both teams’ 2026 campaigns and could influence the AFC West power balance after the Broncos’ 2025 division win.
