Olympic and World silver medallist to train with the Moscow-based group in bid to challenge Yuzuru Hanyu and Nathan Chen ahead of Beijing 2022.
The future for Olympic and World silver medal winning figure skater Shoma Uno is becoming clearer.
Top Russian coach Eteri Tutberidze announced on social media that the Japanese star would join her group "for summer camp".
The news comes days after the PyeongChang 2018 silver medallist confirmed the end of his association with Machiko Yamada and Mihoko Higuchi, who he had trained with since the age of five.
The 21-year-old's decision to leave his native Japan for coaching in Russia had been rumoured.
The announcement confirms reports in Russian media that Uno's representatives held talks with Tutberidze, who has led Alina Zagitova to Olympic and world titles.
The Moscow-based coach currently trains Zagitova and two-time world junior champion Alexandra Trusova.
Apart from talented young skater Daniil Samsonov, there is no strong male in her group.
Training with St. Petersburg-based Alexei Mishin had also been seen as an option for Uno.
The former mentor of Russian legends Evgeni Plushenko and Alexei Yagudin, Mishin is currently coaching European champion Sofia Samodurova and Elizaveta Tuktamysheva.
While Grand Prix assignments for the upcoming season are decided on 20 June, the big goals for Nagoya-born Uno will be the Beijing 2022 Olympic Games, and next World Championships in March 2020.
The two-time world silver medallist failed to make the podium on home soil at last season's worlds in Saitama, Japan, prompting the decision to change focus and coaches.
He has ground to make up on rivals Nathan Chen, whose coach is Rafael Arutunian, and double Olympic Champ Yuzuru Hanyu, coached by Brian Orser.
Uno was the first skater to successfully land a quadruple flip in international competition.
No quintuple jump has ever been attempted in a competition before. The feat would involve a figure skater completing five full rotations in the air and landing successfully.
Uno previously told Olympic Channel that a quint "requires a high level of technique and you might get injured."
It's uncharted territory for us as there is no-one that ever landed it before. But if someone hit a quintuple then many skaters would follow. - Shoma Uno to Olympic Channel
You can watch Uno talking about quintuple jumps here: