Siale previously played for the Queensland Reds in the southern hemisphere's Super 14 competition and for the New South Wales Waratahs and the Western Sydney Rams in the now defunct Australian Rugby Championship.
Siale attended St Patrick's College (Strathfield), playing in the 1st XV under the back-to-back championship success of Head coach Joe Barakat.
Siale continued to play up until 2007 where he made 10 appearances, until he signed with the Reds for the 2008 Super 14 season along with fellow New South Wales Waratahs player Morgan Turinui.
Chris came of age in the ARC where his excellent footwork and line breaking ability combined with his strong defence earned him a way into the depleted Queensland midfield along with 2007 Waratahs teammate and Wallaby World Cup member Morgan Turinui.
He was also unlucky to be called up to the Wallabies squad for the 2007 World Cup held in France, due to an ankle injury he had suffered during the ARC tournament.