AUGUSTA — As a bright sun began to descend over the loblolly pines at Augusta National on Thursday, Jordan Spieth lined up a birdie putt straight across the 15th green. He was 1-under par, four back, right in it, and fully into it.
As Spieth crouched to line up his tricky 29-footer, his eyeline met the 16th tee box, about 30-or-so yards beyond the edge of the green. A forecaddie was working to prep the grounds for his group’s arrival, but his movement, in his bright white jumpsuit, caught Spieth’s eye. Spieth’s caddie, Michael Greller, glared across at the forecaddie for a long moment, hands on hips. Finally, Greller had seen enough and broke the silence.
“Hey, buddy, in the white, you gotta stop moving!”…