Why can't I place a player on injured reserve (IR)?
Players are eligible for injured reserve (IR) or the disabled list (DL) only when they meet your league's injury requirements. This is a configurable setting that the commish may change at any time. To see if a player meets the injury requirements for your league's IR, mouse-over the player's injury icon for more details.
For example, if your NFL league permits only the IR designation, then only players placed on full-season IR are eligible. OUT, SUSPENDED, QUESTIONABLE, or any other designation are all ineligible.