Argentina arrive at Arrowhead Stadium on Sunday morning as the side everyone in this half of the draw most wanted to avoid, and Switzerland, to their considerable credit, have avoided no one to get here. A quarter-final place at a World Cup is its own reward; what happens next decides whether this Swiss generation gets to call itself something more than promising.
The stakes are straightforward. Win and you are four matches from the title with a semi-final to look forward to. Lose and you go home. For Argentina, the defending champions, anything short of a victory would constitute the kind of result that rewrites reputations. For Switzerland, it would be the deepest run the country has made in the tournament since the 1954 edition, played on home soil.
Their only previous World Cup meeting, in the round of sixteen at Brazil 2014, Argentina edged past Switzerland 1-0, a single goal settling a match that went to extra time. Switzerland will know that margin well. They will also know it tells them little about a fixture played twelve years later, with largely different personnel and a different tactical landscape around both sides.
On team news, both squads report no fresh absences ahead of kick-off, which means each manager has a full complement to choose from. For a knockout match at this level, that is about as welcome a piece of information as either camp could receive.
The tactical question hanging over the fixture is how Switzerland approach the evening. Sitting deep invites pressure but reduces the spaces Argentina thrive in. Pressing high hands the initiative back. Neither option is comfortable against a side of this quality, and the Swiss coaching staff will have spent the week working out which discomfort they would rather live with.
The data leans heavily in one direction. Argentina are given a 45 per cent chance of a win in ninety minutes, with the draw also sitting at 45 per cent, and Switzerland rated at just 10 per cent to take it in normal time. The recommended position is a double chance covering Argentina or the draw, which tells you where most analysts expect the balance of play to sit, even if it leaves the destination of the result genuinely open. Kansas City has seen bigger shocks than a Swiss upset, but it has rarely seen a favourite quite as well-equipped to prevent one.