Olympic champion Korir leads trio of Kenyans into 800m final
AMY TENNERY KENYA'S Olympic champion Emmanuel Korir produced his best performance of the season to win his 800 metres semi-final, while Algerian Slimane Moula came from behind to win his race in the fastest time of the day. Korir, one of three Kenyans to advance to Saturday's final in Eugene, Oregon, took it easy to move through his opening heat but took a more aggressive approach in the semi-final. Nearly half a second behind the leader with 100m left, he sprinted ahead of compatriot Wyclife Kisasy and Australian Peter Bol down the final straight, sneaking across the finish line in…