According to a report from Aaron Wilson, at least one player who was released today is going to be brought back by the Pittsburgh Steelers because the team intends to place a player on injured reserve after today, which would allow him to be designated to return later in the year.
Last year, the Steelers did this with Cameron Sutton, their third-round rookie cornerback. He was placed on injured reserve after final cuts, and then the team brought back linebacker Steven Johnson. That team, we knew who would go on injured reserve, but not who would be re-signed.