#49ers #NFL #KCvsSF Listen in as 49ers linebacker Fred Warner was wired for sound during San Francisco’s Week 7 matchup against the Kansas City Chiefs, powered by @CiscoSystems. Subscribe to the San Francisco 49ers YT Channel: bit.ly/2E2VgFJ For more 49ers videos: bit.ly/2U9wau9 For more 49ers action: 49ers.com Like us on Facebook: facebook.com/SANFRANCISCO49ERS Follow us on Twitter: twitter.com/49ers Follow us on Instagram: instagram.com/49ers Get the App: itunes.apple.com/app/id395859078?mt=8