But later Tuesday they rescinded the waiver request on Prime, keeping him on their 90-man roster and instead put defensive tackle Brandon McKinney on injured-reserve.
It’s not yet clear if this is a result of the same knee injury suffered in camp last year, when he suffered a torn ACL. [UPDATE at 9:55 p.m.: I'm told it's the same knee.]
McKinney has not practiced since the team started camp on Sunday.
McKinney got a two-year, $2 million contract from the Colts in 2012. He was one of two defensive veterans the Colts brought over from the defense Chuck Pagano coordinated in Baltimore before he was hired to replace Jim Caldwell. Safety Tom Zbikowski was released after the team signed LaRon Landry in free agency. Now McKinney is also gone, and it appears unlikely he will ever play a game for Indianapolis.
The team is reasonably deep in the interior line now, and will miss him less than it did last season, when he could have been the primary nose tackle. Now Josh Chapman looks to be the leaders for the most time, and veteran Aubrayo Franklin can be a run-stuffer. Martin Tevaseu is also listed as a nose tackle.