FORWARD Mathias Entenmann has pulled out of this weekend's Singapore Sevens, but centre Keith Gauntlet has been given the chance to be part of Hongkong's World Cup build-up, writes Nazvi Careem. Kowloon's Entenmann, who has represented Germany in three Hongkong Sevens, was forced to pull out of the Police Old Bills Select side, due to concussion. Entenmann was hurt in a clash of heads in Kowloon's 30-22 victory over British Forces in last week's Bell's Knockout Cup semi-final. Entenmann was originally part of the Old Bills Select side which features several members of the Hongkong training squad preparing for next month's Canberra and Hongkong Sevens and the World Cup Sevens in Scotland in April. Squad physiotherapist John Moses referred Entenmann to the Hongkong Rugby Football Union's doctor, Mike Fleming, who advised him to rest. But he will still be available for the Canberra and Hongkong Sevens if selected. Gauntlet replaced Mike Seigne in national coach George Simpkin's 14-man squad, all of whom will be in Singapore this weekend for the 32-team event. Seigne pulled out last week after complications following knee surgery. Gauntlet will represent Club along with fellow Hongkong hopefuls Philippe Lacamp, Mark Thomas and David Bulbeck. Valley's Ashley Billington was earlier this week called into the squad to replace Club's David O'Brien, who has an ankle injury. Simpkin will name a 10-man squad for the Canberra and Hongkong Sevens soon after the Singapore event.