Center Jamaal Jackson and left guard Todd Herremans went right to work Sunday after being activated from the Physically Unable to Perform list.
While Jackson thinks he still can be in the lineup for the regular season opener, replacement Mike McGlynn is coming off a stellar debut at the pivot.
Jackson might need an injury to McGlynn to get back into the huddle. Jackson is coming off an ACL tear that for all practical purposes is a two-year rehab.
Herremans has to prove his left foot can take the pounding of practice and games. When healthy, he's the anchor up front. But Herremans hasn't quite been himself since injuring the foot last summer.