A player can only be placed on the Active PUP list prior to beginning of training camp. From what I've read only Active PUP players are eligible for the Reserve PUP list. Reserve PUP may be activated after week 6 of the season. Here is where I could see a change. Considering the 4 weeks of preseason game and considering so many key players get injured in meaningless games I feel the NFL should allow a team to place at least 1 or 2 players that get injured during these meaningless games on the reserve PUP list. As of now, some preseason injuries to key players could be rehabbed in 6 to 10 weeks but teams have no option to reevaluate an injured player if the player was not the active PUP to begin with. any thoughts on this?