"My reaction was extreme disappointment."

Gary D'Amato on the vandalism (with photos) at Brown Deer Park just two weeks before the U.S. Bank Championship. Thanks to reader Nick for this.

About 60% of the putting surface on No. 17 was damaged by vandals on the night of June 23, according to tournament director Dan Croak. The damage likely was caused by a motorcycle or motorcycles.

"I got the call early Wednesday morning (June 24) from Tim," Croak said, referring to course superintendent Tim Wegner. "My reaction was extreme disappointment."