(Reuters) - South Korea's Kang Sung-hoon fell one stroke shy of becoming only the seventh player to shoot a 59 on the PGA Tour as he surged into a tie for the lead after the second round of the Pebble Beach National Pro-Am on Friday. Needing a birdie on his final hole at Monterey Peninsula Country Club to dip under 60, Kang hit his "worst shot of the day" off the tee and had to settle for a par three there and a career-best score of 11-under 60. Four-times champion Phil Mickelson was a further stroke back in a three-way tie for third, having also raised hopes of a magical 59 after making an electric start before he lost momentum on his back nine to card a 65 at Monterey Peninsula. More...