Olympic gold medallists Russia extended their winning streak to defeat the United States 4-3 and secure a place in the International Ice Hockey Federation (IIHF) World Championship semi-finals.
Nikita Gusev scored first for Russia at Ondrej Nepela Arena in Slovakia, with Mikhail Sergachyov making it 2-0 before the end of the first period.
In the second period, Brady Skjei pulled one back for the United States.
The third period saw Kirill Kaprizov make it 3-1 to Russia, before Noah Hanifin closed the gap once again.
The same pattern followed, with Russia's Mikhail Grigorenko making it 4-2 and Alex Debrincat of the US scoring with three minutes to go.
Despite a nervy ending, the buzzer confirmed Russia's place in the semi-final and securing their eighth win in as many games.
They will play Finland in the next round, who narrowly beat Sweden 5-4.
The remaining semi-final will be contested by Canada and the Czech Republic.
Canada recorded a 3-2 victory against Switzerland, while the Czechs comfortably defeated Germany 5-1.
The competition continues tomorrow.