Career
Grebenkina teamed up with Vazgen Azrojan in 1996 and skated with him until 1998, representing Russia. Grebenkina and Azrojan reformed their partnership in 2002, this time representing Armenia. They became the first skaters to medal for Armenia at a Grand Prix event, obtaining bronze at the Nippon Hōsō Kyōkai Trophy in 2005.
They competed at the 2006 Winter Olympics, finishing 20th.
In September 2006, Grebenkina / Azrojan changed coaches, moving from Alexei Gorshkov to Alexander Zhulin. At the 2006 Cup of China, Grebenkina cut her leg with her own blade during practice, requiring stitches, but was able to compete and finished 6th with Azrojan.
The duo retired from competition in 2008. She coaches at Moscow"s Gorky Park.
In 2007, Grebenkina played Maria Feodorovna in a Russian television movie, Звезда Империи.
(with Azroyan).