Seven-time world champion Nicol David reached the last four of the World Series Squash Finals on Friday with an 11-4, 11-8 win over Natalie Grinham of the Netherlands. The Malaysian star\'s round-robin stage win came just a day after she had suffered a shock 12-10, 11-9 loss to England\'s Laura Massaro, the woman she defeated in the World Open final last month. World number one David will face France\'s Camille Serme in Saturday\'s semi-finals at London\'s Queen\'s Club. Serme made the last four despite losing 11-8, 11-6 to world number two Raneem El Weleily on Friday. England duo Massaro and Jenny Duncalf will meet in the other semi-final. Source:AFP