On the injury front, Feti Unga and Cameron Collins will not practice but Riley hopes to get them back later in the week.
Tony Wilson should be okay to go.
Ryan Murphy and Anthony Watkins are probable, Lance Mitchell is more along the wait and see line this week.
Castro Masaniai is of course out.
Mana Rosa is probably the fourth DT in rotation, with Andrew Seumalo and Kevin Frahm the starters, and Ben Motter's role increasing with Masaniai out.
Riley said Motter's nickname is "Motor", and that he is very strong.
Whether Josh Andrews returns to starting guard spot this week has yet to be determined, with Grant Enger having played well.
Riley said they will go to the running game more than they did last week. Riley hopes Malcolm Agnew will be 100 percent this week.
Riley laughed and said he "wasn't surprised" that Jim Harbaugh was involved in the handshake issue this week.
Riley said James Rodgers is not as productive as he was coming off the knee surgeries but he's still making plays and Riley anticipates him doing more and more.
Riley said he anticipated having Joe Halahuni more involved this week than last.
Riley said he can't recall a year they've had as many defensive injuries.
RILEY: More Halahuni, more run game
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