A brace from Australia’s all-time leading scorer, Tim Cahill, was enough to see the Socceroos narrowly edge Syria 2-1 after extra time, 3-2 on aggregate, in Sydney. Cahill’s header in the 109th minute completed the Aussie turnaround and sent them into the inter-confederation playoff, most likely against Panama or Honduras, at the expense of a spirited Syrian side that pushed them until the very end.

Heading into Tuesday’s final matchday in the CONCACAF Hexagonal, there are still a number of scenarios that could confront the United States when the dust eventually settles. Most importantly, the USMNT controls their own destiny. However, things could get a bit dicey in the event of a draw or catastrophic loss. Let’s check it out! 

What happens if…

The United States beats Trinidad & Tobago

It took Costa Rica all of 95 minutes to accomplish the feat, but in the end, Kendall Waston’s stoppage time equalizer secured the nation’s qualification to the 2018 FIFA World Cup in Russia. It was another surreal moment in Los Ticos’ qualifying campaign, one that’s seen them defeat the United States twice and finish second behind only Mexico in CONCACAF’s Hexagonal round.

The United States has qualified for every World Cup since 1990. Only once in that span did the Americans need a result on the final day of qualifying. That came in 1989 when the U.S. traveled to Trinidad and Tobago needing nothing less than a win to procure a trip to the 1990 World Cup. The USMNT again travels to Trinidad and Tobago on Oct. 10 needing a result to extend its streak to eight straight World Cup appearances.

October 6 and 10 could very well define our 2018 without having even celebrated the turning of the new year. Matches against Panama in Orlando and Trinidad & Tobago in Couva will decide the USMNT’s fate with regards to the world’s biggest sporting event. For those that like to measure the time between their birth and death with the probabilities of how many more World Cups they’ll be able to enjoy, failure to take anything less than four points could prove catastrophic.

The final match in the U.S. Men’s National Team’s quest for a World Cup berth will be played in a 10,000-seat stadium. Trinidad & Tobago announced Friday it would host the Americans at the Ato Boldon Stadium in Couva instead of the nation’s normal ground in Port of Spain. The match will be played Oct. 10.