FFGoat

Sleeper guide, 2026 season

Sleeper injury rules explained

How injuries work in a Sleeper fantasy football league: who can go on IR, why your roster locks, why injury tags change midweek, and what happens to trades.

The short version

Who can go in an IR slot

An IR slot is an extra roster spot for a player who can’t play. It doesn’t use one of your bench spots, so you can hold an injured player and still pick up a replacement. On Sleeper, a player can go in an IR slot if he has one of these tags:

Not every league allows all of them. Some options only count if the commissioner has switched them on, so check your league settings if you can’t move a player into IR. A Questionable player isn’t eligible: he has a reasonable chance of playing, so he has to stay in your lineup or on your bench.

The commissioner also sets how many IR slots your league has, from none up to 10.

Why your roster is locked

If a player in your IR slot stops being eligible, for example he’s upgraded from Out to Questionable, Sleeper locks your roster. Until you fix it, you can’t add free agents, make waiver claims or move players around.

To unlock it, make room for him: move him from IR back to your bench or lineup, drop another player to free a spot, or trade someone away if your league allows trades at that point.

This catches people out most often on waiver day. If you’re planning a big claim, check your IR players’ tags first.

Why injury tags change on Wednesdays

An Out tag only applies to that week’s game. When the NFL week rolls over, early on Wednesday morning, Sleeper updates every player’s tag. A player who was Out last week loses that tag unless he’s already been ruled out of his next game. That can make a player ineligible for IR overnight, and lock your roster.

Bye weeks are the exception. If a player was Out (or Doubtful, Questionable or Suspended) and his team has a bye the next week, he keeps the tag through the bye.

In the offseason, Sleeper clears injury tags shortly after the Super Bowl. Players only get one again when there’s a new official designation, which for some long-term injuries isn’t until late August. So a player everyone knows is hurt may not be IR-eligible until just before the season.

What happens to trades with injured players

Sleeper doesn’t have a rule that cancels a trade because a player gets injured, before or after it’s accepted. Once everyone in the trade accepts, it enters your league’s review period. If nobody vetoes it in that time, it goes through. If your league has no review period, it goes through straight away.

Your commissioner can reverse a completed trade if they think it breaks the league’s rules, so if you think a trade should be undone because of an injury, that’s a conversation for your league and commissioner rather than something Sleeper decides.

Trades over a game weekend have a twist: any player who has already played that week stays with his old team, points included, until the week ends. Players who haven’t played yet move straight away. If you’re trading for someone who’s already played, he won’t help you until next week.

Sleeper Picks: injury voids

If you searched “does Sleeper void injured players”, you may mean Sleeper Picks, Sleeper’s separate pick’em game, not season-long fantasy. It has its own Injury Insurance rule. For NFL picks, if an offensive player leaves in the first half and doesn’t come back, a “More” pick on him is voided and your entry is regraded without him. Defensive players aren’t covered. None of this affects your fantasy league. Sleeper’s help centre has the full Picks rules.

Questions

Who can go in an IR slot on Sleeper?

Players tagged Out, Doubtful, Suspended, PUP, NA or DNR, and players on their NFL team’s real-life injured reserve list. Some of these options only count if your commissioner has switched them on in the league settings. Questionable players can’t go in an IR slot.

How many IR slots can a Sleeper league have?

The commissioner chooses, from none up to 10.

Why is my Sleeper roster locked?

Usually because a player in your IR slot is no longer eligible, for example he’s been upgraded to Questionable or the Out tag has cleared. Move him back to your bench, drop someone to make room, or trade if your league allows it, and the lock lifts.

Why did my player lose his Out tag?

An Out tag only covers that week’s game. Sleeper updates injury tags early on Wednesday mornings, when the NFL week rolls over, so the tag drops unless he’s already been ruled out of his next game. The exception is a bye week: his tag carries through it.

Does Sleeper cancel a trade if a player gets injured?

No. Sleeper has no automatic rule that cancels a trade because a player is hurt. Once both sides accept, the trade goes through your league’s review period and then processes, unless it’s vetoed. Commissioners can reverse a completed trade, but that’s their decision, not Sleeper’s.

Does Sleeper void a pick if a player gets injured?

That’s Sleeper Picks, the separate pick’em game, which has its own Injury Insurance rule. For NFL picks it applies to offensive players who leave in the first half and don’t return; defensive players aren’t covered. It doesn’t apply to season-long fantasy leagues.

Check your own league’s injuries

See every injured player in your Sleeper league, newest first, with practice reports and who’s next on the depth chart behind injured starters.

Open Sleeper Injury Reports

Based on Sleeper’s help centre, checked November 2026. Your league’s own settings decide some of these rules, so check them in the Sleeper app if something doesn’t match. FFGoat isn’t affiliated with Sleeper.