* Lang beats Nordqvist in three-hole playoff * Nordqvist receives two-stroke penalty * Ko ties for third after closing 75 (Adds detail, quotes) July 10 (Reuters) - American Brittany Lang won her first major title in dramatic fashion at the U.S. Women's Open on Sunday after her playoff opponent, Anna Nordqvist, was assessed a two-stroke penalty for grounding a club in a bunker. Following a video review by United States Golf Association officials, Swede Nordqvist was penalised for her actions in a fairway bunker on the second extra hole, the par-four 17th, where her five-iron lightly grazed the sand on her takeaway. Nordqvist was informed about the penalty only after she had hit her third shot on the third extra hole, the par-five 18th, leaving the title up for grabs for Lang after both players had parred the first two holes. More...