Both Green and Poppinga took part in some individual drills and had limited reps in seven-on-seven drills. They are not expected to take part in 11-on-11 team drills until later next week.
Green ruptured a quadriceps tendon during a game last October. Poppinga tore ligaments in his knee last December.
"(Dr.) Pat McKenzie and I have talked about what we're doing, and we're not going to sacrifice the rehab portion of it right now," Packers general manager Ted Thompson said. "There will be times when those guys will be on field with the team and there will be other times when they'll be in the Hutson Center continuing their rehab."
A number of other players who missed practices last week because of injuries returned to take part in team drills during the evening practice. They included left tackle Chad Clifton (knee), cornerback Charles Woodson (hip), running backs Najeh Davenport (leg cramps) and Arliss Beach (concussion) and Bubba Franks (knee).
Safety Nick Collins, who injured his back after sliding into the wall of the stands, returned to participate in both practices on Monday.
Players who are still sidelined because of injuries prior to training camp or during the Family Night scrimmage Saturday include cornerbacks Mike Hawkins (knee), Will Blackmon (foot) and Patrick Dendy, safeties Atari Bigby (hand) and Marquand Manuel, guard/tackle Will Whitticker (hamstring) and wide receiver Leo Bookman (ankle).
Linebacker Kurt Campbell did not participate in the evening practice and it was not immediately known why. It also appeared that wide receiver Greg Jennings injured his right thigh or groin. Jennings left practice with ice wrapped around his right leg.
The Packers Monday released linebacker Byron Santiago, who did not take part in any training camp practices because of a back injury.
Excused from practice
Defensive tackle Cullen Jenkins was excused from practices today for "personal reasons," according to McCarthy.