Tutberidze told about this in the comments under her post, in which she talked about Kostorona's departure from her group.
“To Plushenko, we agreed in May,” the coach wrote.
Last season, 16-year-old Kostornaya won the European Championship and also won the Grand Prix series finals. In addition, she won silver in the Russian Championship and set world records in the short program (85.45 points) and in the sum of two rentals (247.59).
Earlier, Tutberidze announced the departure of Kostornaya from her group.