Villas-Boas has sought to appease Vertonghen by revealing that he will be returned to his favoured role at centre-half once Rose returns to full fitness.
He said: "He 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.
"We understand he is making a sacrifice and that is why we respect him and have made him captain at times this season. But there is no problem."
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