313's Heroes and Goats

From the first round of the PGA Championship

The Hero: Robert Karlsson. The tall Swede, who has three top 10's in the majors this year, opened with a double bogey and rallied with six birdies for a 68.
The Goat: Hunter Mahan. The runner-up at the 2002 U.S. Amateur at Oakland Hills sure didn't put his course knowledge to good use with an opening 81.