Kyle Juszczyk, who is the only fullback on the San Francisco 49ers roster and missed Sunday's game against the Washington Redskins, did not practice on Wednesday. The fullback missed all three days of practice last week and was among the inactive players on Sunday. He has been dealing with a back injury.

Rookie linebacker Reuben Foster practiced as he did last week, but was limited. Foster is attempting to return from a high-ankle sprain suffered in a game against the Carolina Panthers on September 10. While Foster returned to practice last week and participated in all three days, head coach Kyle Shanahan didn't feel he was healthy enough to play on Sunday and listed him as inactive. Shanahan is more "optimistic" that Foster will play on Sunday against the Dallas Cowboys.

"I do expect him to (play)," Shanahan told reporters on Wednesday afternoon. "I guess I should use the words, 'I'm optimistic.' Maybe not 'expect.' I'm being more optimistic. I was hoping last week. Definitely wasn't as optimistic last week and more optimistic this week but you never know."

Tackle Joe Staley, wide receiver Pierre Garçon, and defensive end Elvis Dumervil were each given a veteran day off from practice.

Below are the official Wednesday practice participation reports for both the 49ers and the Cowboys, as provided by the 49ers Communications department.

San Francisco 49ers Wednesday Practice

Did Not Participate In Practice
DE Elvis Dumervil (not injury related), WR Pierre Garçon (not injury related), FB Kyle Juszczyk (back), DE Aaron Lynch (calf), T Joe Staley (not injury related)

Limited Participation in Practice
LB Ray-Ray Armstrong (shoulder), LB Brock Coyle (shoulder), LB Reuben Foster (ankle), DT D.J. Jones (quadricep), LB Dekoda Watson (groin), CB Ahkello Witherspoon (chest)

Full Participation in Practice
TE George Kittle (back, elbow), DT Earl Mitchell (thumb), S Eric Reid (knee)

Dallas Cowboys Wednesday Practice

Did Not Participate In Practice
CB Chidobe Awuzie (hamstring), T Tyron Smith (back)

Full Participation in Practice
T La'el Collins (ankle), LB Sean Lee (hamstring)