49ers DT Demarcus Dobbs signs RFA tender

The 49ers’ lone restricted free agent has signed his one-year contract offer. The club said Friday that defensive tackle / tight end Demarcus Dobbs has re-signed for the 2014 season. Dobbs (6-2, 282) appeared in 15 games for the 49ers in 2013, recording 14 tackles. He played 306 snaps last season, according to Pro Football…