LOUISVILLE, Ky. (WDRB) -- In preparation for the 2014 PGA Championship at Valhalla, WDRB Sports director Tom Lane took to the course to learn about the course's key holes. 

Club pro Chris Hamburger says the opening holes are unforgiving, but number six is particularly tough - maybe the toughest on the front side. 

Number 6 - 495 yards, Par 4.

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