KNUCKLEHEAD OF THE WEEK

The world’s No. 2 men’s golfer publicly scolded Sergio Garcia for childish behavior at last week’s Saudi International. Koepka said of Garcia kicking at greens in anger, “It’s not cool, it’s not setting a good example.”

Meanwhile, by playing in the event that several other American golfers boycotted, the American superstar gave validity and support to the Saudi ruling family.

Murder a journalist? Trample women’s rights? That’s none of Koepka’s business. Drag your spikes on the green? Now you’ve got him riled up.

Scott Ostler is a San Francisco Chronicle columnist. Email: sostler@sfchronicle.com Twitter: @scottostler