49ers-Rams Injury Report: Dante Pettis returns, Ahkello Witherspoon in the concussion protocol

The San Francisco 49ers are preparing for their Week 7 contest against the Los Angeles Rams on Sunday at Levi's Stadium in Santa Clara, California.

The 49ers held a walk-through on Wednesday due to the shortened week following a Monday-night game while the Rams held a normal practice.

Wide receiver Dante Pettis has missed the past two games with a knee injury sustained during the 49ers' Week 4 loss to the Los Angeles Chargers. He took part in Wednesday's walk-through.

Rams head coach Sean McVay said on Wednesday that wide receiver Cooper Kupp will likely be ruled out against the 49ers.

Below are Wednesday's participation reports for both the 49ers and Rams, which were provided by the 49ers Communications staff. For the 49ers, it represents an estimation of what participation would have been for a full practice.

San Francisco 49ers Wednesday Practice

Did Not Participate In Practice
WR Pierre Garçon (shoulder, knee), G Mike Person (knee), C Weston Richburg (knee), T Joe Staley (knee), CB Jimmie Ward (hamstring), CB K'Waun Williams (shoulder), CB Ahkello Witherspoon (concussion)

Limited Participation in Practice
RB Matt Breida (shoulder, ankle), TE George Kittle (knee), WR Dante Pettis (knee), CB Richard Sherman (calf), WR Trent Taylor (back)

Full Participation in Practice
LB Reuben Foster (shoulder), G Joshua Garnett (toe), WR Marquise Goodwin (hamstring, quadricep), S Jaquiski Tartt (shoulder)

Los Angeles Rams Wednesday Practice

Did Not Participate In Practice
DL Michael Brockers (shoulder), WR Cooper Kupp (knee), OLB Matt Longacre (back), LG Rodger Saffold (knee)

Limited Participation in Practice
WR Josh Reynolds (hand)