Look: McGirt's caddie finds McIlroy's errant shot at Erin Hills

The PGA Tour continues on at the St. Jude Classic this week, but many players are already at Erin Hills getting in some practice before next week's 117th United States Open.

While William McGirt was getting a grasp of the Wisconsin course, his caddie located one of Rory McIlroy's lost golf balls, likely found in the deep fescue grass.

Jordan Spieth, Jason Day, and Keegan Bradley are also spending their Saturday at the Erin Hills facility.