England suffered a 1-0 defeat by Argentina in their opening match of the Women's Champions Trophy in Holland.
A moment of individual skill from seven-times world player of the year Luciana Aymar midway through the second half saw the world champions prevail.
The South Americans, winners of the last three editions of the Champions Trophy, enjoyed the best of the chances at a rain-drenched Amstelveen.
England, who finished third last year, next face South Korea on Sunday.
The South Koreans lost a two-goal lead to draw 2-2 with China in the other Pool A match on Saturday.
Although not competing as Great Britain, the majority of the 18-strong England squad in Amsterdam are in contention to go to their home Olympics next year.
Good performances in the Champions Trophy will not only strengthen their chances, but could ensure GB have a spot at next year's Trophy - played annually by the world's top eight nations - as part of their Olympics build-up.
Viewed in that context, England head coach Danny Kerry was disappointed with his side's opening performance.
"Some people brought their 'B' games today and we need to be much tougher in possession and on the ball," said Kerry. "We need to be much better tomorrow [Sunday]."
England followed up their third place in last year's Champions Trophy with similar finishes at the World Cup and Commonwealth Games.
Seeking to push on this year, England captain Kate Walsh likened their approach to this tournament as "a bit like a Championship team going into the Premier League - the second season is important".
They now need to gain enough points from their remaining matches against South Korea and China to make progress.
"We will be devastated if we are not knocking around that top pool [of four] for the second stage of the tournament," Walsh added.