Tiger Woods' agent said Friday that he is considering suing golf writer and TV analyst Brandel Chamblee for insinuating that Woods' high-profile rules violations this year constituted cheating.In an analysis published on golf.com, Golf Magazine 's website, Chamblee gave top players grades, and Woods received an "F.'' After an anecdote about how he got caught cheating on a grade-school test, Chamblee, a former pro, wrote, "(Woods) won five times and contended in majors and won the Vardon Trophy and … how shall we say this … was a little cavalier with the rules.''Woods was involved in four high-profile rules issues this year, three of which resulted in two-stroke penalties.His agent, Mark Steinberg, told espn.com that though Chamblee never directly said Woods cheated, the grade-school story and comparing it to Woods was clear."There's nothing you can call a golfer worse than a cheater,'' Steinberg said. "I'm not one for hyperbole, but this is absolutely disgusting. Calling him a cheater? … I'm not sure if there isn't legal action to be taken. I have to give some thought to legal action.''Woods is not scheduled to play again until a European Tour event in Turkey next month. PGA: Webb Simpson opened a four-stroke lead in the Shriners Hospitals for Children Open, taking advantage of perfect scoring conditions at TPC Summerlin in Las Vegas. The 2012 U.S. Open champion shot 8-under 63 to reach 15-under 127. "The ball is really going far," said Simpson, who matched his lowest round on tour. "I was wondering why the scores were so low (Thursday) morning because I thought the ball might go a little shorter. But the ball was getting out there, and the golf course played a little shorter than I thought it would, and I just putted well and kept going."The lead broke the tournament second-round record of three held by Lon Hinkle (1984) and Rich Fehr (1996), set when the event was 90 holes. J.J. Henry followed his course-record 60 with 71 to join John Senden (66), Jeff Overton (68), Chesson Hadley (66) and Jason Bohn (64) at 11 under. Andres Romero, second after a first-round 61, had 81 to miss the cut of 3 under at par 142. LPGA: South Korea's Amy Yang overcame early jitters playing in her home country and shot 5-under 67 to finish in a four-way tie for the lead after the first round of the KEB HanaBank Championship at Incheon. She was tied with Katherine Hull-Kirk, South Korean compatriot Ju Young Pak and Anna Nordqvist. Caroline Hedwall was a stroke behind. Seminole's Brittany Lincicome shot 1-under 71. Champions: Bernhard Langer shot 6-under 64 for a share of the first-round lead with Anders Forsbrand and Dick Mast in the Greater Hickory Classic at Conover, N.C. John Riegger and Olin Browne were a stroke back. European: Peter Hedblom shot 3-under 69 to take a two-stroke lead at 7-under 137 after two rounds of the Perth International in Australia. Dustin Johnson, who shared the first-round lead, shot 74 and was 1 under.