Grebennikov's journey in volleyball started under the mentorship of his father. He played for Rennes Volley 35 from 2007 to 2013, where his father was the head coach. This period was crucial for his development, transitioning from a father-son dynamic to a coach-player relationship.

Position and Playing Style

Initially aspiring to be a wing spiker, Grebennikov switched to the libero position at age 18 on his father's advice. His father believed that this position would better suit his physical attributes and help him excel. Grebennikov enjoys the proactive nature of the libero role, often taking risks and relishing the defensive challenges.

International Debut and Achievements

Grebennikov made his international debut for France in 2011 against Italy. Over the years, he has garnered numerous accolades. He was named Best Libero in various competitions, including the Italian SuperLega (2019/20) and multiple editions of the European Volleyball Confederation's Champions League (2016-2018).

Club Career

Currently, Grebennikov plays for Leo Shoes Modena in Italy. Under the coaching of Andrea Giani at the club level and Laurent Tillie for the national team, he continues to demonstrate exceptional skills as a libero.

Personal Life

Grebennikov is multilingual, fluent in English, French, Italian, and Russian. He is married to Wiem and has a son named Miyaz, born in 2020. His family background includes notable figures in volleyball; his father Boris represented the Soviet Union and has coached in various countries.

Awards and Honours

Grebennikov's list of awards is extensive. He received the Best Libero award at events like the Nations League (2018), Club World Championship (2017), World League (2016), European Championships (2015), and World Championships (2014). In French Ligue A, he was named Best Libero multiple times and also won the MVP award in 2011/12.

Injuries and Resilience

Despite injuring his little finger during the 2014 World Championships in Poland, Grebennikov continued to play. His resilience is evident in his ability to perform under challenging conditions.

Superstitions and Beliefs

Grebennikov wears the No.10 jersey as a tribute to French footballer Zinedine Zidane, whom he idolises. This number holds significant personal value for him.

Ambassadorial Role

Apart from his athletic career, Grebennikov serves as an ambassador for Smash for Green. This environmental initiative by Paris Volley aims to promote eco-friendly practices through sport. He believes that professional athletes should lead by example in adopting responsible behaviours.

As of August 2024, Grebennikov continues to be a key player for both his club and national team. His journey from an ice hockey enthusiast to one of volleyball's top liberos showcases his dedication and adaptability.