Jacksonville's left tackle is heading to the operating table, and until a surgeon's eyes are actually inside the knee, nobody, not the Jaguars, not the people setting lines around this team's season, knows whether this costs three weeks or three months. That range is the whole story for anyone pricing Jacksonville going forward, and it's worth sitting with before the win total or the division price moves an inch.

Anton Harrison will have arthroscopic surgery on his right knee when the team gets back from London next week, per league sources. The injury happened in Week 5, a 19-17 win over Philadelphia at Tottenham Hotspur Stadium, on a running play, a sweep to the right by Bhayshul Tuten. Harrison grabbed the knee and got carted off. He'll miss this week's game against Houston, with Walker Little, who replaced him mid-game in London, expected to start at left tackle protecting Trevor Lawrence.

Jacksonville Jaguars injury news: what we actually know

Here's the part that matters more than the hand-wringing: the team does not yet know how bad this is. Arthroscopic surgery is a diagnostic tool as much as a fix, and depending on what the surgeons find once they're in there, Harrison is looking at one of two very different outcomes. Best case, three to five weeks, likely a short injured-reserve stint. Worst case, three to four months, which in football terms means the season. That's not a typo, that's just how knee surgery works. You schedule the procedure before you know the real number.

This is also Jacksonville's first real injury scare of the year. Through five weeks the Jaguars had been one of the healthier rosters in the league, a quiet advantage behind a 4-1 start that's built them a two-game cushion in the AFC South over Indianapolis, with Houston at 1-4 and Tennessee winless. Healthy teams don't stay healthy forever. That's not pessimism, that's just the almanac of a 17-game season talking.

Harrison's own arc makes this sting a little more. The 27th overall pick in 2023, he started as a rookie at right tackle and missed only three games across his first three seasons, durable enough that Jacksonville exercised his fifth-year option back in April. The team then moved him to left tackle for 2026, his natural side out of Oklahoma, trusting the switch would pay off protecting Lawrence's blind side. Four games in, that bet is on pause.

Anton Harrison vs. Walker Little: the tackle swap by the numbers

Anton HarrisonWalker Little
PFF overall grade, 202670.867.0
Pass block grade67.176.6
Run block grade71.2n/a
Sacks allowed, 202620
Starts, 202640

The tell here isn't that Little is some clear downgrade, the overall numbers are close enough to be noise over four games. It's the zero in that last row. Little, a 2021 second-round pick who's logged 39 career starts, has exactly zero starts this season and only 24 snaps before stepping in for Harrison in London. He's a capable backup who's never had to carry a full workload at left tackle this year, protecting a quarterback who throws it 8.1 yards an attempt. That's a different ask than mop-up duty.

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Trevor Lawrence is the name that matters here, and not just because he's the quarterback. Lawrence has a documented injury history, shoulder and ankle problems and a concussion that ended his 2024 season on IR. He's been sharp through five weeks, eight touchdowns against two picks, but his protection just got murkier right as the calendar turns toward a stretch where Jacksonville is trying to hold a two-game division lead. A line that's spent four weeks pricing Jacksonville as the AFC South favorite now has to account for a backup tackle logging his first real workload of the season in front of a passer whose medical file reads longer than most.

Check the almanac on this one, because knee scopes have fooled teams before. David Bakhtiari's 2021 arthroscopic clean-up in Green Bay was supposed to be a short absence, and Elgton Jenkins slid out to tackle while they waited. Short absences off a scope aren't a guarantee, they're a hope. The range Jacksonville is living in right now, three weeks to the whole season, is exactly that kind of hope with a wide error bar.

I'm not going to pretend I've got a number to hand you here, because nobody does yet, not the Jaguars, not the people who set these lines for a living. What I've got is a mechanism: a durable, well-regarded young left tackle goes down, a backup with thin 2026 snaps steps into a full-time role, and the quarterback behind him has a history that makes every hit count a little more. That's the kind of injury that moves a win total conversation over the next two weeks, even before the surgery results land.

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The actual surgical report is the number that resolves this. Three to five weeks reads as a speed bump for a 4-1 team with a two-game division cushion. Three to four months is a different animal entirely, a full-season adjustment to protection schemes and to how much Jacksonville can lean on Lawrence down the field. Until that report comes back, anything priced off this news is pricing the range, not the result. Mind the gap like it owes you money, because right now the gap is the whole story.

This is the Read, not a tip, and as always: entertainment with variance, 21+ where legal, and if any of this ever stops being fun, that's 1-800-GAMBLER, not a bad beat to play through.