SAN FRANCISCO

-- The San Francisco 49ers are making plenty of additions for the 2013 season. 

But one piece of the puzzle may already be in the fold. 

Trenton Robinson, a sixth-round NFL draft pick in 2012, could be poised to make a big move for the 49ers after a low-profile rookie campaign. 

The former Bay City Central and Michigan State University standout played just 25 special teams plays for the 49ers a year ago but

projected that Robinson may get a shot at safety in year two. 

"Dashon Goldson's departure at free safety gives Robinson an opportunity.  He'll be thrown into a mix that also includes newly-signed free agent Craig Dahl and perhaps a high draft pick,"

Several commenters also chimed in on the Robinson topic on

, some expecting Robinson to emerge and other anticipating their team moving in a different direction in the secondary. 

: "Trenton Robinson is getting a few mentions since Goldson has left but this guy was a third-round grade for a lot of experts that we picked up in the sixth round.  He's had a year to settle in, learn the NFL and learn from Goldson, is it possible that he could be our starter at FS and Dahl was just brought in as backup in case he wasn't as good as predicted?" 

: "Robinson always will have the Bob Sanders stigma to me.  Talented player but undersized, how long he can hold up is a question.  He looks so small, but he has a bunch of talent." 

: "If Robinson beats out Dahl, Spillman, and whomever we draft in the early rounds, then he'll be the starter.  If he lags behind and Seely doesn't see him as a valuable STer, he may get cut.  No sentiment or entitlement based on the fact that he was a draft pick." 

A more clear picture should come into view following the NFL Draft, starting April 25.