CNN  — 

The search for a team to challenge the US continues.

In their most difficult test thus far, the defending champions came through unscathed, securing a comfortable 2-0 victory against Sweden to make it three wins from three in France with no goals conceded.

For athleticism, for speed, for attacking prowess the US is without equal at this Women’s World Cup. Indeed, no team has ever scored more in the group stages than the 18 goals netted by Jill Ellis’ side.