Spurs are using Jan Vertonghen in the position at present with number one full back Danny Rose still out injured but the Belgian defender is not happy with playing wide.
Villas Boas has left Benoit Assou Ekotto out in the wilderness and he is currently on loan at Queens Park Rangers leaving Vertonghen as second choice left back ahead of right footed Kyle Naughton.
Spurs have been linked with a move for unsettled Real Madrid full back Fabio Coentrao but his fellow countryman Villas Boas has dismissed talk of bringing in a new defender in the winter with Rose returning to full fitness before Christmas.
“No, I don’t think so,” Villas Boas said.
“Danny Rose is still out but making good progress on his injury so we’re looking for a two or three-week period now finally for his return.”
“He (Vertonghen) is a central defender – one of the best in the world.
“Unfortunately, due to the situation at the moment, he has to sacrifice himself at left-back.
“He knows that as soon as Danny Rose comes back, the place as a centre-back is his again. The good of the team is more important at the moment.”