49ers sign Tramaine Brock to an extension

According to Matt Maiocco of CSNBayArea.com,  the 49ers have signed cornerback Tramaine Brock to a 4 year $16 million dollar contract with $7 million guaranteed.

Brock has had a breakout season so far with 18 tackles and 4 interceptions.  He’s the reason the Niners no longer needed Nnamdi Asomugha.