Each year, we like to run a series of posts called "90-in-90." The idea is that we'll take a look at every player on the roster, from the very bottom to the top and break them down a few ways. This roster will certainly change, and some days we'll have more than one so it's not exactly 90 players in 90 days. At this point, it's a name we're keeping around for street cred.

This past May, the San Francisco 49ers invested a seventh round pick on Boston College defensive tackle Kaleb Ramsey. The BC product has the size (6'3, 293 pounds) to work as a defensive end in the 49ers 3-4 defense, but the big issue for him has been injuries. He received two different medical redshirts in college, and likely had as many injuries as anybody drafted.

It is not a shock then that he opened training camp on the PUP list. Ramsey reported to camp last Wednesday with the other rookies, and was quickly placed on the list for an unspecified injury. The fact that he was placed on the PUP list instead of the NFI list would indicate he suffered an injury during the 49ers offseason workout program. It could very well prove to be a minor injury. The 49ers do not hit the practice field until Thursday, so Ramsey and the other NFI/PUP players are not missing on-field work at this point. However, for Ramsey, this is not a good sign. Given his injury history, even the smallest issue will be magnified.

Here are a few scouting reports on Ramsey:

NFL.com

CBS Sports

Draft Insider

Expected 2014 impact:

Ramsey is competing at a position that is particularly deep. After Justin Smith and Ray McDonald, the front-runners for extensive time in the defensive line rotation are Tank Carradine, Tony Jerod-Eddie, and Demarus Dobbs. Quinton Dial will get some chances there, Mike Purcell will compete all along the line, and of course, there is everyone's favorite, Lawrence Okoye, trying to prove he can make it in the NFL.

If Ramsey were to get healthy and stay healthy through camp, his most likely impact is likely a season on the practice squad. If he did make the roster, he'd likely end up inactive most weeks, similar to Joe Looney's rookie season. And of course, if health remains an issue, he could either stay on the PUP list all season, or get activated and eventually end up on IR at some point.

Odds of making the roster:

His roster odds are not particularly great, but I think he sticks with the 49ers in some form or fashion. Either he will be on the practice squad, or he ends up on one of the injured lists. I would not see the 49ers getting overly frustrated with his injury situations until next offseason. If he can't stay healthy, at that point I imagine the 49ers would cut bait and move on. For now though, I think they find a way to keep him around, just probably not on the 53-man roster.