Switzerland face Ecuador in the opening game of Group E in the Estadio Nacional, Brasilia, to open up Sunday's trio of matches in Day 4 of the 2014 World Cup.
The European side are ranked sixth in the world by FIFA and they are favourites to escape with France into the knockout stages. Ecuador will be no pushovers though; the 2-2 draw with England before the tournament, showed how capable they are of mixing it with the bigger sides.
The warmth and humidity of Brasilia will set the South Americans more than Ottmar Hitzfeld's team.
Switzerland will mostly likely set-up in a 4-2-3-1 formation with 21-year-old Josip Drmic playing the role as lone striker.
Fabian Schaer, Switzerland's top scorer during qualification, is favourite to partner Steve von Bergen in central defence.
Ecuador's main injury worry is dynamic midfielder Christian Noboa; if he doesn't make it, coach Reginaldo Rueda will call upon Osvaldo Minda or 19-year-old Carlos Gruezo.
The battle for the wings is where this game could be won. Jefferson Montero and Antonio Valencia for Ecuador and Xherdan Shaqiri and Valentin Stocker for Switzerland will all provide a huge threat from the wide areas.
We'll be rating the performance of the players on both sides at half-time and full-time, so be sure to check back here to how each player is doing.
The match kicks off at 5 p.m. BST (12 p.m. ET)
Benaglio - made some poor decisions during the game. Could have cost the Swiss the game.
Lichtsteiner - Got forward well all through the match, but no final product in attack.
Von Bergen - Strong in the air, dealt with most attacks well. Positioning was good.
Djourou - Torrid time in defence. Beaten for pace and went missing for the goal. Has made some vital blocks though.
Rodriguez - Got forward when he could. His injury time pass set up the winning goal.
Behrami - Solid performance. Made a superb tackle in injury time that set up the winning goal.
Inler - Tried to build attacks from the back, lacked that killer touch or pass.
Stocker - Taken off at half-time after a fairly quiet performance.
Xhaka - Managed one decent shot, but didn't trouble the 'keeper. Needs to get more involved.
Shaqiri - Much better second-half. The move to the centre helped him get on the ball more. Caused problems.
Drmic - Only worked one half-chance. Struggled to get into the game. Second-half goal was wrongly disallowed.
Mehmedi - Scored early in the second-half to level the scores. Looked busy and had some good moments.
Seferovic - Scored the injury time winner. Never really got a touch before that.
Dominguez - Made some good saves. Could have done better for the goal.
Paredes - Made a great tackle on Drmic earlier in the first half. Untroubled mostly.
Guagua - Tracked the runs of Drmic and the other midfielders well. Looked comfortable.
Erazo - Solid peformance. Defended well for the majority of the game.
W. Ayovi - Played well down the left, caused problems with his set-pieces. Great FK for the goal.
A. Valencia - Not his best game, the quietest of the attacking players.
Noboa - Went mostly unoticed, some bad touches and just hasn't been on the ball enough.
Gruezo - Quick, lively, aggressive. Impressed in the centre of the pitch.
Montero - Caused constant problems, showing great skill and pace. Needs to find that decisive pass or moment of magic.
E. Valencia - Pace caused the Swiss lots of problems. Great header for the goal. Always a threat, even when moved up as the main striker.
Caicedo - Looked strong in and around the box, ran the channels well.
Rojas - Never got enough of the ball to get involved.
Arroyo - Had a chance at the end, but Behrami's tackle took away his moment.