C Elegans, for reviews of all games, you can go:
2002 World Cup
Anyway, here's a brief summary:
Portugal start attacking, then boom!, chaos occurs in Portuguese area as the US counterattacks and a good American header leads to O'Brien scoring from the rebound in the 4th minute. The game carries on with both teams taking chances but Portugal a bit on the back foot, and at 30 minutes, Landon crosses the ball from just outside the area, ball gets deflected off the head of J.Costa and goes in the gol, just scraping the left post. Minutes later (36th of first half), McBride receives a good cross near the Portuguese goal, and free of a marker, headers in a comfortable goal. USA 3 Portugal 0...big shock...however, Portugal start collecting themselves and Pauleta scores in the last few minutes of the first half to make it 3-1.
The second half sees an altered Portugal, attacking more and defending slightly better, however the USA initially hold them off quite well until at around 70 mins when Agoos scores a beautiful own goal.
3-2, and a tense last 20 mins; Portugal ever getting more and more chances and dominating the game more, though just a few real threats created - US hold out and win the game.
Overall, for the 90 minutes, USA deserved to win and they did.