Benitez hinted at his interest in signing Bale after the game.
Club president Massimo Moratti has already revealed the Italians have long admired the 21-year-old.
Asked on Tuesday night if Bale would get into his team, Benitez said: "If he plays like today, why not?"
Yet, as in the San Siro two weeks ago, the former Liverpool boss once again felt his side gave Bale too much space.
"I think he was doing well away in the first game and he was doing well today when he had the space," said Benitez, who saw his side slip behind Spurs on goal difference in Group A.
"We knew that if he has the space, it is difficult to stop him because he has pace."
"He has more problem when players play like Bale, so we had to help him."