Two of the 49ers' high-profile draft picks who are coming off significant knee injuries are expected to report Thursday to take part in the team's rookie minicamp.
Florida State defensive lineman Tank Carradine and South Carolina running back Marcus Lattimore, a fourth-round selection, will not take part in the on-field activity during the three-day get-together for rookies and first-year players. But they will still be presented with plenty of work.
Most of the players will get their first glimpses of the 49ers' playbook. At this point, the mental part and classroom sessions are more important than the football practices, which run Friday through Sunday at the team's Santa Clara training complex.
Carradine, a second-round pick, has yet to be cleared for football work after a season-ending ACL injury. He has a good chance of being ready for the opening of training camp in late-July.
There is absolutely no rush with Lattimore, a fourth-round selection, who sustained a dislocated knee and three torn ligaments in a late-October game against Tenneseee. Lattimore is expected to be placed on the non-football injury list at the start of training camp. Coach Jim Harbaugh is pleased with the 49ers' depth at running back. He wants Lattimore to slow down his rehab.
"If he doesn't play this year, he doesn't play," Harbaugh said.
Undrafted offensive tackle Luke Marquardt of Azusa Pacific is in a similar situation. He missed his senior season due to a foot injury. He recently underwent another procedure.
Carradine, Lattimore and Marquardt are expected to undergo physicals and begin learning their respective playbooks while taking "mental reps" at the practices.
In addition to the 49ers' 11 draft picks and 11 undrafted rookies, the following players with no pension credits are eligible to participate:
OL Al Netter
P/K Anthony Santella
LB Nathan Stupar
S Michael Thomas
OL Wayne Tribue
OL Kenny Wiggins
Outside linebacker Darius Fleming and running back Jewel Hampton will not be eligible to participate in the rookie minicamp.
Fleming, who sustained an ACL tear during last year's rookie minicamp, spent last season on injured reserve and, thus, was credited with an accrued season. Hampton began the season on the non-football injury list with after offseason surgery to remove bone spurs in his foot. He was moved to the active roster but did not play in the final five regular-season games.