Check out these images of caddies working for the world’s best golfers at this week’s PGA Championship — the final major of the season — at Bellerive Country Club in St. Louis.
Photos: Caddies at the 2018 PGA Championship

Austin Johnson caddie for Dustin Johnson (not pictured) on the 17th green during the Monday practice round of the PGA Championship at Bellerive Country Club. Credit: John David Mercer-USA TODAY Sports