Great Britain’s women’s team are in a similarly precarious position.
The inexperienced rink – with only Jen Dodds surviving from the 2022 gold-medal winning team – finished sixth in last year’s World Championships and were some way short of their best against the US, with opportunities missed and mistakes made.
It looked for all the world like their chances were gone, trailing 7-6 going into the final end, and without the hammer.
However, Rebecca Morrison executed a sensational double takeout with her final throw and the Americans faltered under pressure, botching their effort to hand the British rink an implausible 8-7 triumph.
The Scottish quartet still need to win their final two games and hope for favours elsewhere if they are to salvage a place in the medal matches.
The next hurdle is a meeting with bottom-of-the-table Japan later on Wednesday (18:05 GMT) before they face second-bottom Italy on Thursday (13:05).
“There was a lot at stake but we just need to keep believing,” Morrison told BBC Sport. “We were up against it but we’re here to fight and that’s what we did.”
