McDonald off to great start as 49ers' second tight end

Daily 49ers blog for NBC Bay Area website: Vance McDonald is trying to fill Delanie Walker's big shoes (and big role) with the 49ers as a versatile tight end. So far, so good this summer. http://www.nbcbayarea.com/news/sports/McDonald-Developing-Nicely-as-49ers-No-2-Tight-End-219417851.html