The 49ers released center Jeremy Zuttah on Wednesday.
They replaced him on the roster with linebacker Sean Porter.
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In March, San Francisco acquired Zuttah and Baltimore's sixth-round pick (No. 198 overall -- defensive tackle D.J. Jones)
In exchange, the Ravens received the 49ers' sixth-round pick (No. 186 overall).
Zuttah was a Pro Bowler last year with Baltimore.
The 31-year old entered the NFL as a third-round pick of the Buccaneers in 2008.
San Francisco 49ers
After six seasons in Tampa Bay, Zuttah played for the Ravens from 2014 to 2016.