The north Londoners go to
Now comes a double-header with Maribor, starting with Friday's (AEDT) clash at the Stadion Ljudski before the return fixture at White Hart Lane in two weeks.
"I think these two games with Maribor is going to be the decisive point of the group phase," Tottenham boss Villas-Boas said.
"A point will not be a bad result as it will keep us tight with Maribor. Lazio can escape if they beat Panathinaikos.
"But our two games with Maribor will be decisive. After those we will see where we stand, before we have a home game with Panathinaikos and a difficult trip to Lazio.
"I think these two games could prove decisive. You will get a clearer picture after these two games to see more or less what can we do."
Maribor was defeated in the group stage by second-tier Birmingham City in last season's competition and asked whether it was a side Tottenham should be beating, Villas-Boas said: "Yes, for the players we have and the team that we have this is clear.
"But it doesn't always go like that and that is the reality of the game. You saw only yesterday Manchester United struggling against Braga - two teams of completely opposite dimensions.
"By the nature of the game, we will not expect an easy game. It is a passionate environment, a very, very good club that are run tremendously and have done very well in the last 10 years, winning most of the Slovenian titles."
Villas-Boas has brought a strong-looking 19-man squad with him to
Bale also stayed in the UK after his girlfriend gave birth to their first child at the weekend, which saw him miss the 4-2 home defeat to Chelsea.
"We've been discussing it since he left us for the game against Chelsea, so he is allowed to stay with his family until tomorrow," Villas-Boas said. "It's a conversation I had with him.
"I think on such an important date, it's important to give the player the choice of return, so he returns mentally strong and ready to focus on the game.
"It depends case to case. It's all very emotional for him at the moment, like it has been for a couple of us here, so I think it is the right time for him to be off so that we have no doubts about his mental state when he returns for Southampton.
"In these occasions, it's important to have the input from the player. We left it up to him to decide on the Chelsea game.
"Obviously it was an important date for him and we allowed him to go back to his family. It's the normal amount of time."
Adebayor is the other big name not to have travelled with Tottenham, which Villas-Boas says is due to back pain.
However, there were reports the
"He's pretty happy," Villas-Boas said of Adebayor. "I think we have got some excellent results that came to an end at the weekend against Chelsea, but the group has been extremely happy.
"Obviously each individual has their own position. There are people playing, people that are injured and those threatening to come in.
"Certainly Ade is a player who wants to come into the team, but
UEFA Europa League
Malaga has been able to reduce its suspension from competing in European competitions to one year.