Olympic champion Canada was held to a 0-0 draw by Nigeria in its Women’s World Cup opener after Nigerian goalkeeper Chiamaka Nnadozie made several key saves, including one on a penalty from Christine Sinclair. It was a crucial miss for Sinclair, the 40-year-old Canadian who is the leading all-time scorer in international soccer, men or women, with 190 goals. Aiming to be the oldest player to score at the Women's World Cup, she also missed a chance in the 9th minute when she was unmarked at the edge of the box but misfired.