'Big league head'

ESPN's Jerry Crasnick is a great writer:

Webb's pitching repertoire is down to earth, so it's only fitting that his personality is, too. As any diehard Diamondbacks fan can attest, Webb is partial to jeans and T-shirts, breakfast at IHOP and playing his guitar in the clubhouse to unwind before games. He's just an unpretentious country boy with no clue that he's entitled to a major case of big league head.

If I were Brandon Webb I'd totally get some big league head.