Llama trash-talks Richard Sherman: 'You mad, human bro?' (VIDEO)

SEATTLE -- Richard Sherman can handle the trash talk, but only if it's from humans.

In this sunglass commercial from Neff Headwear, Sherman has a bit of a hard time dealing with Spartacus the Llama's trash talking.

But can you blame the llama? It looks like Sherman is struggling through his lines.

Watch the commercial above.