49ers Running back: Coach Mike Singletary made it clear Frank Gore is still the featured runner. Third-round pick Glen Coffee also will get carries, but after that there are plenty of question marks. Holdovers Michael Robinson and Thomas Clayton and rookie Kory Sheets, who has plenty to prove after going undrafted, will vie for playing time. Robinson is a valuable special-teams performer. Clayton and Sheets are competing for the same roster spot.
49ers RB roster battles begin
Filed Under: 2010, Preseason