2006 | World Cup | FIFA World Cup | World Trade Center | World Series | 2010 FIFA World Cup | World Bank | World Health Organization | Guinness World Records | 2006 in music | 1978 FIFA World Cup | World Series of Poker | Allies of World War II | BBC World Service | ATP World Tour 250 series | World Heritage Site | World Boxing Association | World Boxing Council | 2006 FIFA World Cup | 101st Airborne Division | Universal Music Group | World Wide Web | As the World Turns | World Trade Organization | ATP World Tour 250 Series | World Rally Championship | World Intellectual Property Organization | World Economic Forum | Football League First Division | 2006 Commonwealth Games |
Greer was first called up to represent Australia in 2006 where he joined the national under-18 team to compete in the 2006 IIHF World U18 Championship Division II Group B tournament being held in Elektrėnai and Kaunas, Lithuania.