Here is the 49ers’ initial 10-man practice squad:
OLB Marcus Rush. The preseason leader in sacks -- six -- not only was released Saturday, he went unclaimed on Sunday. That means he will join the 49ers’ practice squad for the second straight season. While Rush was ferocious against the pass, his run defense gave NFL teams pause.
WR Chris Harper. The former Cal product spent last year on both New England’s active roster and practice squad. He has a background as a punt returner and could fill the spot the 49ers were intending to give another Cal receiver, Bryce Treggs. Treggs was signed to the Eagles’ active roster Sunday. Harper was on his way to Santa Clara Sunday and had not officially signed with the 49ers.
WR Dres Anderson. He was injured last season, his rookie year, but began to make strides during training camp and preseason. By the end of the preseason he was the 49ers’ best-looking young prospect at outside receiver.
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RB Kelvin Taylor. The sixth-round pick played behind Carlos Hyde, Shaun Draughn, Mike Davis and DuJuan Harris in the preseason.
OL Fahn Cooper. The team’s fifth-round pick played both tackle and guard during the preseason.
ILB Shayne Skov. The former Stanford standout will join the practice squad for the third straight season. Skov played every snap in the 49ers’ preseason finale Thursday.
TE Je’Ron Hamm. The 49ers added Hamm to their practice squad last season. He’ll join a position group that includes Garrett Celek, Vance McDonald, Bruce Miller and Blake Bell.
OL Norman Price. The undrafted rookie from Southern Mississippi spent the preseason as a reserve left tackle.
C Alex Balducci. He was DeForest Buckner’s roommate when they were freshmen at Oregon. Balducci is transitioning from nose tackle to center.
CB. Prince Charles Iworah. The seventh rounder was the team’s final draft pick.
* Note: The only member of GM Trent Baalke’s 11-man draft class who did not make either the initial active roster or practice squad was sixth-round pick Jeff Driskel. The quarterback was signed by the Bengals Sunday.