Career
Grebennikov was born in Rennes, France. His father Boris is a former Russian volleyball player and coach. Clubs = National championships 2011/2012 French Cup, with Rennes Volley 35 2013/2014 German Cup, with VfB Friedrichshafen 2014/2015 German Championship, with VfB Friedrichshafen National team 2015 FIVB World League 2015 CEV European Championship Individual 2014 FIVB World Championship - Best Libero.