Niners Nation: For San Francisco 49ers Fans

Kyle Shanahan has Chiefs PTSD San Francisco 49ers coach Kyle Shanahan admitted watching the old Super Bowl film against the Chiefs gives him PTSD, but says you also have to push through that while preparing for this week. Plus, Nick Bosa wants to see another "must-win" type effort from the team, and we check in on Patrick Mahomes' thoughts about the game. One Thing to Read: https://www.nbcsportsbayarea.com/nfl/san-francisco-49ers/deebo-samuel-george-kittle-lions-nfc/1794258/ CHECK OUT UNDERDOG FANTASY: Go to UnderdogFantasy.com, sign up with promo code GOLDSTANDARD, and Underdog will give you a FREE PICK to use on your first cash Pick’em entry PLUS up to $1,000 in bonus cash when you deposit. Must be 18+ (19+ AL & NE; 19+ in CO for some games, 21+ MA & AZ) and present in a state where Underdog Fantasy operates. Terms apply. Void in CO. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; AZ: 1-800-NEXT-STEP (1-800-639-8783) or text NEXT-STEP to 53342; NY: Call the 24/7 HOPEline at 1-8