New Everton signing Nathalie Björn helped Sweden get off to the best possible start at the Olympic Games as they beat the United States of America 3-0 at the Tokyo Stadium.
The reigning World Cup champions were unable to break through Sweden's formidable defence as the result brought their 44 games unbeaten run to a swift end.
There was no space for fellow new Everton arrival Anna Anvegård in the matchday squad, as she watched the game unfold from the stands.
Stina Blackstenius gave Sweden the lead after 25 minutes and slotted home a second in the 54th minute.
Lina Hurtig came off the bench and sealed the win with a headed effort past Alyssa Naeher in the 72nd minute.
While plaudits will be made for Sweden's attacking stars, the defensive unit which Björn excelled in has given the nation a great opportunity to progress into the knockout stages.
For Great Britain, Sandy MacIver missed out on the matchday squad but cheered her teammates on as they secured a comfortable 2-0 win against Chile at the Sapporo Dome.
English striker Ellen White scored both Great Britain's goals - netting in the 18th and 73rd minutes - to see off their South American opponents.
Hayley Raso and Australia got off the mark in their opening match against New Zealand in a 2-1 win.
The Everton midfielder enjoyed 83 minutes on the park and was one of the Matildas standout players.
Australia took a 2-0 lead into the break as Tameka Yallop and Sam Kerr put the side in yellow ahead.
New Zealand pulled one back in injury time but it wasn't enough as Australia held on for the win.
For Sweden, focus now turns to Australia on Saturday as Björn and Anvegård will go head-to-head against Everton teammate Raso.
Meanwhile, this weekend will see MacIver and Team GB face off against hosts Japan.