March 19, 2013 6:56 am Sideline Concussion Concerns New guidelines urge youth coaches to pull players for evaluation after hard hits and possible concussions. NBC’s Erika Edwards reports. Local 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:05 Whoopi Goldberg reveals who will inherit her fortune