Week 4 handed us a little of everything, and the loudest moment of the afternoon wasn't a touchdown. Lamar Jackson left Baltimore's game in Tennessee with an ankle injury, and until we hear more, that's the sentence that colors the rest of these NFL Week 4 takeaways. Everything else Sunday was football. That one was a held breath.

I don't have the full update on Jackson in front of me yet, and I'm not going to pretend otherwise. What I know is that he exited against the Titans with the ankle, and that the Ravens' whole operation is built around a quarterback who makes his living on sudden changes of direction. Ankles are the cruelest injury for that kind of player, because the rehab chart and the cutting chart are two different documents.

What happened to Lamar Jackson against the Titans

The reporting out of Nashville was short and immediate: Jackson left the game with an ankle injury. No timeline attached to it yet. Baltimore has been through this song before, which is exactly why the reaction around that fan base was less panic and more weariness. You don't need a long memory to remember how much of a Ravens season rides on one man's lower body.

From the almanac: jackson's 2021 season ended early with an ankle sprain, which is the whole reason nobody in baltimore shrugs at the word "ankle."

The honest read is that we wait. The medical report tells the story, not the broadcast shot of a guy walking off.

The Rams needed four minutes and the Patriots needed 1:50

Los Angeles was down 10 in the fourth quarter in Philadelphia and won 24-20. The mechanism was simple and old-fashioned: Kyren Williams ran for two touchdowns in the final four minutes while Matthew Stafford kept the thing upright long enough to get there. Beating the Eagles in that building, in that fashion, is the kind of afternoon a team points back to in January. Four minutes. Two scores. Done.

New England got a nervier version of the same movie. Drake Maye threw two turnovers and then threw three touchdown passes, the last of them a one-handed catch by Efton Chism with 1:50 left, and the Patriots walked out of a 29-26 game against Buffalo on the right side of it. That's a young quarterback's box score in miniature: the mistakes are real, and so is the fact that he was still the best player on the field when it got late. I'll take the guy who answers his own turnovers over the guy who hides from them every week of the year.

Why the Colts keep winning while Daniel Jones gives the ball away

And then there's Indianapolis, winners of two straight with a quarterback who has lost three fumbles over the past two weeks. Both of those games went in the win column anyway.

That's a tell about the rest of that roster more than it is about Jones. Teams don't survive that kind of giveaway rate on charm. Somebody is winning the line of scrimmage, somebody is getting stops after the short fields, and the Colts have found a way to absorb a mistake that usually ends an afternoon. The fumbles still need to stop. Ball security tends to regress toward reality, and reality is not kind to quarterbacks who put it on the grass twice a fortnight.

Elsewhere on the slate, the league got its first London game of the season and an afternoon showdown between unbeatens, and Dallas and Houston got after it. Full tape still to come on those.

What I'm watching next

Two things. First, the word out of Baltimore on Jackson's ankle, because that single update shapes more of the AFC picture than anything else that happened Sunday. Second, whether Indianapolis can win a third straight while cleaning up the fumbles, which is a far more sustainable way to live than what they've been doing.

The weekend isn't finished, either. Detroit visits Carolina tonight at 8:20 ET, and Atlanta is at New Orleans on Monday night. Week 4 still has chapters left.