In Argentina, the women's World Cup Hockey Champions tournament opens tomorrow. Hosts Argentina favourites to add the World Cup title to the Champions Trophy crown in the 12 nation tournament. The tournament features two pools of six.Pool A contains world number one Netherlands, Germany, Australia, New 3Zealand, Japan and India while and Pool B boasts Argentina, China, England, Spain, South Korea and South Africa.The top two teams in each pool move into the semi finals, likely to be Netherlands and Germany from Pool A and Argentina and China or England from Pool B.Netherlands have the edge on neighbour Germany, winning 1-0 at the Champions Trophy six weeks ago.