I don't think it's an eliminator anymore... so either a B level opponent or it's off... This is always a bad situation... both for the injured fighter and for the other camp.
I see they have "Froch vs. TBA" on the Showtime schedule today. Because the money will likely be good and because of the national TV audience, I think they shouldn't have too much of a problem finding a replacement. Perhaps one of the participants in "The Contender" like Bika or Codrington will be willing, or perhaps an up-and-comer like Pascal.
Yeah...this is a big blow for him...Froch is unlucky...steped up too late, generally, waited some more (avoided Bute), injuries (right knee), postponements (Inkin)...he might even have to face Kessler for the vacant title later in the year (!!!)...not an easy ride.:-(