Zenit star Axel Witsel has cast doubt on his chances of joining Juventus in the next transfer window.
The Belgium international had looked poised to join the Serie A champions in August but the move ultimately fell through after Zenit head coach Mircea Lucescu refused to sanction a sale.
Witsel stated last month that he fully expected to move to Turin in 2017, but he has suggested that the five-time Russian champions could veto his departure in January.
"For now, I'm here and I'm playing for Zenit. I don't know if I'll leave the club in January," the 27-year-old told TASS.
"It's not my decision, but Zenit's.
"In the summer I could have gone to Juventus but coach Lucescu didn't authorise the transfer. It wasn't a good feeling but I went back to work as normal once I was back in St. Petersburg."
Witsel has won one Premier League title, one Russian Cup and two Russian Super Cups since joining Zenit from Benfica in 2012.