Apologies all.  I appear to have been spreading misinformation recently.  I had believed that guys sent to IR without first being kept on the final 53 would still be eligible to be brought back as the two eligible "designated to return" players this season. After lots of asking for clarification on Twitter, there have been two pretty clear replies by ESPN's Field Yates, and Panthers' Bill Voth which state clearly that those guys sent to IR today are NOT eligible to be brought back: