Well, my bracket is already marred.
But, then again, it's highly likely that yours is, too.
It has been proven, fairly conclusively, that nobody will ever have a perfect bracket. The odds of doing so are something along the lines of 9.2 quintillion to one.
I don't know what a quintillion is, exactly. I do know it's larger than a quadrillion, which is bigger, still, than a trillion. So, it's big.