As many of you pointed out in the comment yesterday, Adam Schefter reported that Mario Manningham has torn his ACL and PCL, ending his season. It is incredibly unfortunate for Manningham, particularly given the timing of the injury this late in the season. Adrian Peterson came back in short order from a Week 16 ACL tear last season, but it remains to be seen how long Manningham will be out.

The 49ers will need to consider their roster options as we get through the holiday. A.J. Jenkins would seem likely to be active next Sunday, and into the playoffs, but the 49ers likely will still be looking for some additional wide receiver depth. They have Chad Hall and Ricardo Lockette on the practice squad, and might very well work out some veterans this week.

The question then becomes what the future holds for Manningham and the 49ers. MM signed a two-year deal with the 49ers, and based on previous reports, Manningham's second year is only partially guaranteed for injury. He is due a $3.6 million base salary, and $1.25 million of that is reportedly guaranteed for injury. That means, if the 49ers elected to part ways with Manningham in light of his injury, they would still owe him $1.25 million in 2013.

If the 49ers elect to keep Manningham, there is a good chance he would start training camp on the PUP list. If he is not ready to go, they could leave him on the PUP list until they figure out his status and recovery. We'll have to wait and see how the 49ers handle this situation. In the meantime, maybe we'll see A.J. Jenkins get a few looks against the Arizona Cardinals.