Why does Anderson Silva have beef with FLoyd Mayweather?

[imp]

Floyd was interviewed awhile ago and someone mentioned to not take canelo lightly after what happened with anderson in the ufc.

Floyd said he doesnt even know who anderson is.

Obviously anderson heard about that and is now acting like he never heard of floyd.

Anderson messed up bigtime in his last fight and hopefully he can stay focused and not showboat for the next one.