SUWON, South Korea (AP) -- Cautious and defensive, or bold and attacking?
After five days of watching other teams play, Portugal's golden generation on Wednesday makes its long-awaited debut on the world stage in its group D opening game against the United States.
And it's crunch time for tactical decisions.
In a squad that includes some of Europe's top talent, Portugal coach Antonio Oliveira has to decide whether to deploy his side's fearsome attack or heed the lesson of France's upset defeat in the World Cup opening match and proceed with caution. Portugal goes into the game as firm favorite.
"We've seen some situations so far [in the World Cup] where the prey has caught the predator," Oliveira said, referring to the France vs. Senegal result.
"We've got to watch we don't get caught out."
Though Portugal, ranked fifth in the world, looks to be the best side on paper, world player of the year Luis Figo dismisses talk of an easy encounter.
"Being favorites in theory means nothing. In practice we can lose the game," the Real Madrid star said. "In a World Cup the outcome of matches is unpredictable."
The United States is ranked 13th in the world and has yet to stamp its mark on world soccer.
Since returning to the World Cup in 1990 after a 40-year absence, the Americans have gone 1-8-1, including losses to Germany, Iran and Yugoslavia at the 1998 tournament in France where they finished last.
The Americans won their most recent match-up against Portugal, in 1992, 1-0. Portugal beat them 1-0 in 1990 in Portugal.
Also, this is Portugal's first appearance in the tournament since 1986.
"The U.S. has more World Cup experience than us, and they've beaten us before," Figo warned.
Fernando Couto, the Portuguese captain who has 82 caps, says the Portuguese are wary of American muscle.
"They're a very physical team and they can create a lot of problems for us," the central defender said. "Their strikers are very quick and move around well."
Oliveira has to gauge whether to play with two defensive midfielders or just one.
The coach has kept his cards close to his chest, holding closed training sessions over the past three days. He will tell the players who he's picked only on the day of the game.
The question is, does he field Sporting Lisbon's Paulo Bento alongside Armando Petit of Boavista in front of the defense, or just Petit behind a three-man attacking midfield?
Figo and AC Milan's midfield maestro Rui Costa are likely to start, but they could be joined by Internazionale of Milan's Sergio Conceicao if Bento doesn't play and Oliveira wants to pressure the Americans.
Up front, Bordeaux striker Pedro Pauleta, top scorer in France last season and voted best player in that country, is certain to start.
Just behind Pauleta will be "shadow striker" Joao Pinto who has been on top form for Sporting Lisbon.
Fiorentina of Italy's Nuno Gomes probably will start on the subs' bench but could add extra weight to the attack if needed.
As the tension has grown over the past few days, Portugal has stressed the need to start its campaign with a win.
"We aim to grow from game to game after starting well. Getting three points on Wednesday is very important," Costa said.
Oliveira's game plan may be conditioned by the fitness of his star players. Both Figo and Costa are coming off layoffs due to injury and, though they have recovered, there are doubts about their match fitness.
The Americans are worrying about injuries to key players. Both captain Claudio Reyna and star attacker Clint Mathis are in doubt for the game.
If Mathis isn't available the United States could open its campaign with its two youngest players, DaMarcus Beasley and Landon Donovan, both 20.
Coach Bruce Arena is widely expected to start Brad Friedel in goal; Jeff Agoos and Eddie Pope as central defenders; Tony Sanneh and either David Regis or Frankie Hejduk as outside defenders; Claudio Reyna and John O'Brien as defensive midfielders; Earnie Stewart and DaMarcus Beasley as outside midfielders; and Mathis and Brian McBride up front.