San Francisco 49ers Need Colton McKivitz to Rise and Tackle Jaguars’ Fierce Duo to Keep Perfect Record Intact

 

The San Francisco 49ers enter Week 4 of the NFL season with their unbeaten record on the line, and the spotlight has fallen squarely on right tackle Colton McKivitz. Against a Jacksonville Jaguars defense that boasts one of the league’s most relentless edge-rushing tandems, McKivitz’s ability to hold his ground could make the difference between victory and heartbreak.

The Jaguars’ pass-rushing duo — Josh Allen and Travon Walker — have wreaked havoc so far this season. Allen leads the team in sacks, showcasing explosive first-step speed and an arsenal of pass-rush moves, while Walker brings power and versatility off the edge. Together, they’ve set the tone for Jacksonville’s defensive identity, collapsing pockets and forcing opposing quarterbacks into hurried decisions.

For the 49ers, quarterback Brock Purdy has thrived behind a well-structured offense led by Kyle Shanahan, distributing the ball efficiently to his playmakers. But Purdy’s rhythm depends on protection, and while left tackle Trent Williams remains the gold standard on the blind side, the right edge presents a potential vulnerability. That’s where McKivitz must step up.

McKivitz, who took over as the starting right tackle after Mike McGlinchey’s departure, has had an up-and-down stretch. Against Jacksonville, the margin for error shrinks considerably. Shanahan and the coaching staff will likely scheme quick throws, max protection looks, and tight end help to ease McKivitz’s burden, but there will be plenty of moments where he’ll be left one-on-one with either Allen or Walker.

The 49ers’ offensive balance could also be key. Christian McCaffrey’s dynamic ability as both a runner and receiver forces defenses to stay honest, potentially slowing the Jaguars’ pass rush if San Francisco establishes the ground game early. Still, all eyes will be on McKivitz whenever Purdy drops back in obvious passing situations.

If McKivitz can rise to the challenge and keep Jacksonville’s edge duo contained, the 49ers have every chance of extending their perfect record. But if he struggles, the Jaguars have the tools to turn this into a trap game for San Francisco.

For the 49ers, staying unbeaten won’t just be about stars like McCaffrey, Deebo Samuel, or Nick Bosa. It may come down to the grit and determination of one offensive lineman tasked with keeping chaos at bay.