Trenton Robinson of Michigan State covers a lot of ground in a hurry and is physical in stepping up into the box to make tackles. He continued his ascent up draft boards after a solid senior season in which he totaled 80 tackles and four interceptions.
Robinson, at 5'10" and 195 pounds, surprised a lot of people at this year's NFL Scouting Combine by logging a 4.52 40-yard dash and a 35" vertical leap. He then bested the time with a 4.42 at his pro day. He can track speedy receivers and uses his long arms and vertical to contend with the taller ones.
CBSSports.com has this to say about a few areas of his game:
Ball Skills: Makes the easy interception, at times with hands away from his frame. Always find the ball quickly enough to at least a hand on it, has nice arm length and gives great effort to rip the ball from the receiver's hands. Short stature, however, will hurt him downfield in jump ball situations against taller, stronger NFL receivers.
Tackling: Uses long arms (longer than expected given his height) and speed to track down ballcarriers in the open field. Not a big thumper, but will take his shot if a receiver is trying to make the extra yard. Will leave his feet or duck his head at times, leading to missed tackles against stronger ballcarriers.
Run Support: Not afraid to stick his nose into traffic against the run despite his size. Comes off the edge on run blitzes regularly. Gives all effort to wrap and drag down bigger backs. Does not spend much time in the box. Lacks bulk and size to hold up against lineman inside at the next level.
Look for Robinson to provide depth early on in his career and then eventually work his way into a starting role for the 49ers.
Safety is not a huge need for San Francisco with Donte Whitner and Dashon Goldson penciled in as starters in 2012, but Robinson should add depth in the secondary and find playing time on special teams.