https://nfl.myfootballnow.com/player/1829

This guy is injuried before taking a snap, but after camp. I thought it reset at camp.

It's not reset at camp, camp is when the injury recovery logic occurs. If a player is injured badly enough, it is possible to still have an injury state after camp.

2008 2008 Game 11
C Oscar Whitfield
Injury (Hand)
2008 2008 Game 10
C Oscar Whitfield
Serious Injury (Knee)
2008 2008 Game 6
C Oscar Whitfield
Injury (Arm)
2008 2008 Game 4
C Oscar Whitfield
Injury (Foot)
2008 2008 Pre-Season Game 1
C Oscar Whitfield
Injury (Foot)
2007 2007 Game 16
C Oscar Whitfield
Injury (Foot)
2007 2007 Game 15
C Oscar Whitfield
Injury (Arm)
2007 2007 Game 13
C Oscar Whitfield
Injury (Arm)
2007 2007 Game 12
C Oscar Whitfield
Serious Injury (Knee)

2 serious knee injuries in a little over a year . Only 2 games missed. Iron man here . Thanks for the quick reply !