AUGUSTA, Ga., -- If you've been paying close attention this week, you might have noticed something about Jordan Spieth that's a little different from normal. It's not a major departure from his everyday personality. It's subtler than that, but you can still sense it.
He's irritable.
Little stuff has been getting under his skin. A reporter's question. A few random gusts of wind. A rules official putting him on the clock for slow play. A miscommunication that led to him snapping at his caddie, Michael Greller, in the middle of a round.
Spieth has played the role of polite, genteel Texan for so long.