Defending champions USA saved by the post and stumble through to knockout stages

The United States reached the knockout stages of the Women's World Cup with a 0-0 draw against Portugal on Tuesday, surviving a late onslaught from the tournament debutants to keep their title defence alive at Eden Park.

The four-times champions were playing with everything on the line but spurned several chances to find the net and the addition of veteran Megan Rapinoe in the second half did little to turn things around against a physical Portugal defence.

They survived a huge scare in stoppage time when Ana Capeta hit the post and another when the striker won a free kick just outside the box a few minutes later but held on in the nerve-jangling final minutes of the Group E clash.

Goalkeeper Ines Pereira had no issues stopping forward Lynn Williams' header in the fourth minute and co-captain Alex Morgan fired wide from the middle of the box in the sixth minute.

Williams had another header on target in the 14th minute off a cross from Sophia Smith, but Pereira easily gathered that effort.

In the 27th minute, Williams fired a shot straight at the Portugal keeper and smashed a follow up effort over the crossbar and Pereira was again equal to the task for the forward's final shot of the half in stoppage time.

The addition of winger Rapinoe in the 61st minute and forward Trinity Rodman in the 84th minute failed to revive the US front line.

The stadium let out a collective gasp as Capeta's stoppage-time shot ricocheted off the post and the Americans scrambled together a frantic defence to avoid a once-unthinkable fate in the final moments of the match.

The United States move on to the last 16 in Melbourne, where they will almost certainly face Sweden, after finishing in second place in Group E behind the Netherlands who thrashed