Graeme Storm has taken the early lead at Southern Hills, heading the field at the USPGA Championship after posting a five-under 65, while Australians Geoff Ogilvy and John Senden are just four strokes off the pace. As the temperature hovered around 37 degrees celsius, American John Daly made the early running in the hot conditions, coming into the clubhouse after taking the lead through a three-under 67. But, as the afternoon wore on, Daly was overtaken by England&aposs Storm, who produced four birdies on the back nine to finish on 65. Storm is now two strokes ahead of Daly and three ahead of Americans Arron Oberholser and Woody Austin. Ogilvy and Senden, meanwhile, are part of a large group of players on one-under after day one of the year&aposs final major tournament. Ogilvy produced a particularly up and down round as he posted seven birdies and six bogeys on his way to carding 69. The Australian could have been right up with the leaders though, but finished his round with two bogeys to slip further back into the field. Senden also had a chance to challenge for the lead but, after carding three birdies and two bogeys, he found himself level with Ogilvy. One stroke behind those two is Rod Pampling who managed an even-par round of 70, while Nick O&aposHern, Richard Green and Adam Scott are all at two over. Further back is Aaron Baddeley and Stuart Appleby, who both carded three-over 73s, while Robert Allenby and New Zealand&aposs Michael Campbell are a further stroke behind.