Favourites USA kicked off their 2015 Women's World Cup campaign with a 3-1 win against Australia on Monday, but it was far from plain sailing for Jill Ellis' side.
However, they have taken their place at the top of Group D after Nigeria claimed a remarkable 3-3 draw with Sweden. In Group C, Cameroon thrashed Ecuador while defending champions Japan edged Switzerland.
The much-fancied French start their tournament against England on Tuesday, and Brazil also get going as they clash with Korea Republic.
Here are the full results from Monday, along with updated group standings and Tuesday's fixtures.