Toby Alderweireld has been left out of Tottenham's squad for Tuesday night's Champions League match against Juventus.
Press Association Sport understands the defender, who was recently sidelined for three months with a hamstring injury, has remained at home to work on his fitness.
However, Alderweireld's omission by Mauricio Pochettino for the trip to Turin - the Belgian was also absent from Tottenham's matchday squad against Arsenal - is likely to raise question marks over his future at White Hart Lane.
The 28-year-old defender is out of contract next summer, but Tottenham have an option to extend his deal by one season until 2020.
Failure to activate the extension however, will spark a release clause allowing Alderweireld to leave for a fee of £25.4million.
Alderweireld tore his hamstring in Tottenham's 3-1 Champions League group stage victory against Real Madrid on November 1.
He played 90 minutes in Spurs' Emirates FA Cup fourth-round replay victory against Newport at Wembley last week, and declared after the match he is fit and ready to play.
