The keys to victory for 49ers vs. Vikings

Daily 49ers blog for NBC Bay Area website: If Richard Sherman is still Richard Sherman, it will certainly help the 49ers in their season opener vs. Minnesota. That and four other keys for an S.F. win Sunday: https://www.nbcbayarea.com/news/local/Underdog-49ers-Have-Path-to-Victory-vs-Vikings-492696461.html