Jermaine Jones of the US celebrates with DaMarcus Beasley of the US after scoring a goal during the 2014 World Cup G soccer match between Portugal and the US at the Amazonia arena in Manaus, June 22, 2014. [Photo/Agencies]

First ever World Cup water break

Referee Nestor Pitana granted a discretionary water break - the first time this has ever happened at a World Cup - due to the heat and humidity at the jungle venue in Manaus.More

The United States now has four points in Group G, the same as Germany. Both Portugal and Ghana have one point. The Americans will face Germany on Thursday in Recife, while Portugal takes on Ghana at the same time in Brasilia.

"Now we have to go out and beat Germany, that's what we have to do," US coach Jurgen Klinsmann said. "We have to play Germany, we have one less day to recover, we played in the Amazon, they played on a place with less travel. We have to do it the tough way."

It was all Portugal for much of the first half, with Ronaldo in the starting lineup but getting less involved as the match progressed. The Americans, however, started to get more and more chances and even had a shot from Michael Bradley cleared off the line by Ricardo Costa in the 55th.

The heat in the Amazon rainforest, however, seemed to slow the Portuguese as the match wore on.

In the 39th minute, referee Nestor Pitana on Argentina called for a cooling break, the first such decision to be taken at the World Cup.

At the start of the match, FIFA listed the temperature at 30 degrees C (86 degrees F) with 66 percent humidity. FIFA uses the "Wet Bulb Globe Temperature" to determine when official cooling breaks should be added, and says the WGBT must be above 32 degrees C (90 degrees F) for them to be considered.

The breaks are supposed to occur in the 30th and 75th minutes.

Dempsey's goal was his fourth at a World Cup and second at this year's tournament. Jones scored his third goal for the United States national team and first in almost two years.

Lineups:

United States: Tim Howard; Fabian Johnson, Geoff Cameron, Matt Besler, DaMarcus Beasley; Kyle Beckerman, Jermaine Jones, Alejandro Bedoya (DeAndre Yedlin, 72), Michael Bradley, Graham Zusi (Omar Gonzalez, 90); Clint Dempsey (Chris Wondolowski, 87).

Portugal: Beto; Andre Almeida (William Carvalho, 46), Ricardo Costa, Bruno Alves, Joao Pereira; Miguel Veloso, Joao Moutinho, Raul Meireles (Varela, 69th), Nani, Cristiano Ronaldo; Helder Postiga (Eder, 16th).