The home side took a surprise lead in the first half when Robert Beric managed to bundle the ball past Tottenham goalkeeper Hugo Lloris.
However, Spurs levelled when Jermain Defoe’s effort was blocked, but midfielder Gylfi Sigurdsson was alert to secure a point for the north London side.
With Lazio and Panathinaikos playing out a goalless stalemate, Villas-Boas’ men, who are winless in Europe this term, remain in third position, two points behind the Serie A outfit.
“The second half was extremely good, the first half was not so good,” said Villas-Boas.
“We came back into the game, which is pleasant to see again and it is good for us to bounce back.
“It is obviously not the full result we wanted bearing in mind the draw between Lazio and Panathinaikos, but certainly we will take a point.
“The group is completely open. What we face now is two games at home and I think we are in a good position in the group.
“We are in third position. We have three games to play, there are nine points to play for.
“You see the group – it is very tight. It is not a group where the leader has run off with points.”
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