Enisei-STM picked up their second victory of the Challenge Cup pool campaign as they stunned Newcastle 24-7 at Yug Stadium on Saturday.
After beating Brive in Round Three, confidence was clearly high on home soil for the Russian side as they led 14-7 at the half-time break.
Those two tries came via wing Denis Simplikevich in the fifth minute while outside centre David Kacharava added the second on 28 minutes. Second-row Calum Green offered Newcastle's response, converted by full-back Tom Penny, but that was as good as things got for the Falcons.
Kacharava scored his second try soon after the break and with a Iurii Kushnarev penalty to go with three conversions, Enisei-STM kept the Falcons at bay for another notable scalp in their first season in the competition.
Tries: Simplikevich, Kacharava 2
Con: Kushnarev 3
Enisei-STM: 15 Ramil Gaisin, 14 Jurijs Baranovs, 13 David Kacharava, 12 Mikhail Babaev, 11 Denis Simplikevich, 10 Iurii Kushnarev, 9 Alexey Shcherban, 8 Anton Rudoi, 7 Andrey Temnov, 6 Vitalii Orlov, 5 Viacheslav Krasylnyk, 4 Uldis Saulite, 3 Innokentiy Zykov, 2 Nazir Gasanov, 1 Alexey Volkov.
Replacements: 16 Stanislav Selskii, 17 Andrei Polivalov, 18 Evgenii Pronenko, 19 Mikhail Sidorov, 20 Sergey Kuzmenko, 21 Nikolay Serkov, 22 Dmitriy Simonov, 23 Plavel Butenko.
Newcastle: 15 Tom Penny, 14 Zach Kibirige, 13 Adam Powell, 12 Juan Pablo Socino, 11 Belisario Agulla, 10 Tom Catterick, 9 Jamie Booth, 8 Callum Chick, 7 Daniel Temm, 6 Richard Mayhew (c), 5 Will Witty, 4 Calum Green, 3 Paddy Ryan, 2 George McGuigan, 1 Alex Rogers.
Replacements: 16 Rob Hawkins, 17 Ben Harris, 18 Andrew Foster, 19 Mouritz Botha, 20 Kane Thompson, 21 Ruaridh Dawson, 22 Adam Redman, 23 Daniel Marshall.
Referee: Tual Trainini (France)
Assistant Referees: Vincent Blasco Baqué (France), Jonathan Gasnier (France)