Argentina seeks its third straight quarterfinal appearance. Switzerland hasn't made the quarters since 1954 and hasn't won a World Cup knockout game since 1938.
Wally, is there a third option?
KICK-OFF! Argentina 0-0 Switzerland
wy, I'm going 3-2 Arg and 1-0 AET for the U.S.
Ryan, they should be out close to 15:00 ET / 20:00 BST, so three hours or so.
blytzus, let's makes it short and sweet then!
A slow start in Sao Paulo as Argentina look to move to ball about, but Switzerland are snapping at their heels.
Ezequiel Lavezzi feels a crunching challenge from Xherdan Shaqiri, but referee Jonas Eriksson just talks to the Swiss attacker.
Xherdan Shaqiri is on the receiving end now as Fernando Gago fouls him - a real battle at the start.
Angel Di Maria glides past Stephan Lichtsteiner, who clearly drags his shirt and holds him back. The referee gives a foul, but the Swiss right-back is very lucky to avoid what should be a clear booking.
The ball is curled in from the left but the Swiss clear.