The winger injured his hamstring with Sweden last month and has missed Spurs' last three games.
Conte said: "He's almost ready. He had an MRI scan and that was positive.
"I spoke to the doctors and they said we could have 5% of risk if he played.
"It would be stupid to take the risk and lose him for the rest of the games and I don't want to take any risk as he's an important player."
Barcelona could go OUT of the Champions League tonight.
If they lose at home to Inter Milan and Bayern Munich get a point or more against Viktoria Plzen, Barca are done.