Third-round cornerback KeiVarae Russell returned to practice Sunday after leaving the previous day’s practice because of cramps.
Fourth-round tackle Parker Ehinger and fourth-round receiver Demarcus Robinson left practice on Sunday. Robinson limped off the field, but a team spokesman said both players were dealing with cramps.
Undrafted free agent linebacker Terrance Smith also left practice Sunday with an undisclosed injury.
When asked which offensive linemen he wants to emulate, Ehinger mentioned San Francisco left tackle Joe Staley and Minnesota guard Alex Boone.
Staley is a five-time Pro Bowler, but both were stalwarts on the offensive line under coach Jim Harbaugh’s tenure there.
“Staley went to the same high school as me, was coached by the same head coach, so I heard a lot about him growing up through the ranks in middle school and freshman, sophomore year,” said Ehinger, a four-year starter at Cincinnati who graduated from Rockford High School in Rockford, Mich.