While Robinson hasn't been a significant contributor on defense this season, he has been a key presence on special teams, participating in 78 percent of the unit's snaps, according to Pro Football Reference.
The 49ers will likely turn to their practice squad and could elevate DaShaun White to shore up their linebacker group ahead of Sunday's game against the New England Patriots.
Now in his fourth season with the 49ers, Robinson entered the NFL as an undrafted free agent with the Denver Broncos in 2021.
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