Injured San Francisco 49ers rookie linebacker Reuben Foster reportedly warmed up with his teammates prior to Wednesday's practice. The team is preparing to play the Arizona Cardinals on Sunday at University of Phoenix Stadium.

Foster, who is recovering from a high-ankle sprain suffered during Week 1, was seen jogging and stretching with his teammates. However, once warmups were complete, Foster exited the practice field and walked to a side field for rehabilitation.

On Wednesday, head coach Kyle Shanahan said that he didn't believe there was any chance that Foster would play against the Cardinals.

Three players suffered concussions last Thursday night against the Los Angeles Rams. They are linebacker Brock Coyle, fullback Kyle Juszczyk, and safety Jaquiski Tartt. All three were limited during practice on Wednesday.

Below are the official Wednesday practice participation reports for both the 49ers and Cardinals.

San Francisco 49ers Wednesday Practice

Did Not Participate In Practice
LB Reuben Foster (ankle), S Eric Reid (knee), T Joe Staley (not injury related)

Limited Participation in Practice
LB Brock Coyle (concussion), RB Carlos Hyde (hip), FB Kyle Juszczyk (concussion), S Jaquiski Tartt (concussion)

Arizona Cardinals Wednesday Practice

Did Not Participate In Practice
G Alex Boone (chest)

Limited Participation in Practice
WR John Brown (quadricep), TE Jermaine Gresham (ribs), T D.J. Humphries (knee), G Mike Iupati (tricep), LB Chandler Jones (chest), WR J.J. Nelson (hamstring), T John Wetzel (biceps)

Full Participation in Practice
LB Deone Bucannon (ankle)