David Carr wants you to know he is not his brother, Derek Carr

The world of Twitter can be pretty amazing at times. You can get into some fascinating discussions with a vast assortment of folks. For sports fans, it can even mean chatting with your favorite players. And then there's this:

Hey bro! Big Fan, hope you go to the Niners! ....I've already been ther......oh....you think I'm Derek.... #AmazeBalls

— David Carr (@DCarr8) April 8, 2014

Derek Carr is among the notable quarterback prospects in the 2014 NFL Draft. He attended Fresno State, like brother David, and like David, Derek has a good chance of being a first round pick. But beyond that...uhhhh...err...

I suppose it's easy to mix up players, but that doesn't make this any less humorous. Although, the funnier thing about this might be some of the responses. You can go over to the tweet and see some of the mouth-breathers that responded to Carr's tweet (the Raiders fans are particularly amusing).

And as far David Carr's time in San Francisco? Always easy to roll this out: