Sissoko seeking action over Juve chants
Juve were forced to play a game behind closed doors last season after fans sang "a black Italian does not exist" towards Inter Milan's Palermo-born striker Mario Balotelli.
The club were then fined by the Italian league after supporters chanted "jump up and down and Balotelli will die" at Sunday's 1-0 home win over Udinese but further offensive songs were heard at Wednesday's Champions League defeat by Bordeaux.
"We as players have repeated our position against racism at every opportunity," Mali international Sissoko, who is black, told Italian radio on Thursday.
"Juventus as a club have taken all the necessary steps. Now the institutions must intervene."
UEFA could investigate the chants in Bordeaux but because they happened before the game started they might not be included in the referee's report and hence the likelihood of any sanction would be reduced.
Second-placed Juventus host Serie A leaders Inter on December 5 and Inter coach Jose Mourinho said he believed there was a chance the game would be moved away from Turin.