Youri Tielemans converted a 120th-minute penalty to complete Belgium’s comeback from two goals down, booking a Round of 16 date with the United States in Seattle on Monday.

A dead-rubber on paper turned into eight minutes of stoppage-time theatre — and a reminder of what Mauricio Pochettino still has to fix before the knockouts.

Playing without the injured Christian Pulisic, the United States beat Australia 2-0 in Seattle to reach the World Cup knockout rounds and win back-to-back games for the first time since 1930.

Folarin Balogun scored twice and Giovanni Reyna added a flourish as the United States opened its home World Cup with a 4-1 rout of Paraguay before 70,492 at SoFi Stadium.