The Facts: Six 49ers will not participate in this weekend's mini-camp due to injuries: Jackson (toe), CB Shawntae Spencer (underwent recent surgery to remove bone spurs in his foot), LT Jonas Jennings (shoulder), C Eric Heitmann (leg), RG Justin Smiley (shoulder) and TE Delanie Walker (shoulder).

Diehards Line:Jackson's injury of most interest here after the veteran receiver has spent time the last two years battling knee and -- most recently -- toe injuries. That the toe is still an issue is a bit worrisome. That said, he has plenty of time to get healthy. We'll continue to follow his status and report further as developments warrant.