Belgium never lost a group game; Senegal never kept a clean sheet — they meet in Seattle

Two shapes of a knockout team

Belgium drew 1-1 with Egypt, drew 0-0 with Iran, and then beat New Zealand 5-1 in a game they had to win. Unbeaten, yes, but for two-thirds of the group they looked like a side that grinds rather than flows. Senegal are the mirror image: a 1-3 loss to France, a 2-3 loss to Norway, and a 5-0 demolition of Iraq. They conceded in every group game and still went through, riding the goals when they came.

The question the match asks

This is a game about control versus chaos. If Belgium slow it down and keep the ball, Senegal's defensive lapses may never get punished — because Senegal won't get the space to run. If Senegal turn it into a track meet, the group numbers say goals will follow, and Belgium's caution could cost them. Neither team has settled which version of itself it is. The first twenty minutes, and who imposes their tempo, will tell you a lot.