Bad news for the Pack.
Because this is perhaps the first major injury to a key player in the Lions' division this season, it's become more real than it has been at any time this year the potential impact of such an injury. It's very intimidating to imagine a player like Calvin, Suh or Stafford going down for the season once again, but it's not so hard to actually envision the scenario.
Is it possible to be prepared for injuries like this? You'd think if any team could be prepared, it would have a strong chance of being the Packers. Could the Lions possibly be prepared to lose Calvin?