March 30 : New Zealand prop Tamaiti Williams has been ruled out of the rest of the Canterbury Crusaders' Super Rugby Pacific season with a spinal infection and is no certainty to return to action in time for the start of the All Blacks' test season in July. The 25-year-old loosehead is in hospital after being diagnosed with discitis, an infection in one of the discs in his spine, the Crusaders said in a statement on Monday. His absence is a blow for the defending champions, who are sixth on the