49ersNFL49ers serve notice to rest of NFL: It's time to take them seriously5YNick WagonerAP Photo/John Locher
49ersNFL49ers LS Nelson suspended 10 games for PEDs6YNick WagonerMichael Zagaris/San Francisco 49ers/Getty Images
49ersNFLWhile other phases seek consistency, special teams gives 49ers stability8YNick WagonerKelley L Cox/USA TODAY Sports
49ersNFL49ers' initial 53-man roster features rookies in prominent depth roles8YNick WagonerEzra Shaw/Getty Images
49ersNFL49ers look to Brian Hoyer as bridge starter at quarterback8YNick WagonerAP Photo/Marcio Jose Sanchez
