UPDATE:
It was confirmed that Robinson suffered a concussion. He will enter the league mandated concussion protocol this week.
Robinson was replaced by Keith Reaser. The team is already without Jimmie Ward, who opened the season as a starter. In Ward's place, Robinson had been playing at a high level leading up to the game against the Bills. Other than NaVorro Bowman, who is out for the season, Robinson was the 49ers' highest-graded player this season per advanced statistics site Pro Football Focus.
More San Francisco 49ers News
-
49ers announce roster moves ahead of clash with Cardinals, place Demarcus Robinson on IR
On Saturday, the San Francisco 49ers announced the following roster moves ahead of Sunday's games against the Arizona Cardinals. Promoted DL Viliami Fehoko to the active 53-man roster Elevated DL Kevin Givens to the active roster from the practice squad (standard... -
How Different is the 49ers Defense Under Raheem Morris?
For most of Kyle Shanahan's tenure in San Francisco, the 49ers' defense has been built around a familiar formula: an aggressive four-man front, zone coverage and a pass rush capable of getting home without constantly blitzing. Robert Saleh's return to San Francisco last season... -
Why did the 49ers sign Dante Pettis? John Lynch explains
The San Francisco 49ers reunited with one of their former second-round draft picks this week, signing wide receiver Dante Pettis to the practice squad as they prepare to face the Denver Broncos in Week 4. The move comes amid uncertainty surrounding wide receiver Mike Evans,... -
49ers' John Lynch on chances Mike Evans plays vs. Broncos, Nick Bosa and Trent Williams updates
San Francisco 49ers wide receiver Mike Evans is working through a rib injury he suffered Sunday against the Arizona Cardinals. There is no guarantee that he will be healthy enough to suit up for this weekend's contest against the Denver Broncos, but the 49ers are hopeful. It...