It's only October, and the season is far from over, but receiver Dexter McCluster has come to expect the same scene whenever he strolls into the Chiefs' locker room after a victory. First, he sees the smiles. The laughter. The high-fives and the relief. Then he hears the rap music, which always blasts out of a small, red boombox supplied by the player who has perhaps sacrificed more than most realize to help the Chiefs jump out to their best start since 2003.