Conte felt that Bhoys striker Gary Hooper had been impeding Juve goalkeeper Gianluigi Buffon at times but Lennon played that down, maintaining his stance that his players were in the right to stand where they liked in the 3-0 loss at Parkhead.
Conte said: "I say that every time it starts, or there is a corner to Celtic, there is always punishment in favour of the defending team because there is a player who systematically blocks our goalkeeper in the six-yard box. In the first leg, it was Hooper.
"Regulation says that in the six-yard box, a goalkeeper must not be touched and, if he is, it is systematically a foul."
To which Lennon responded: "He's talking rubbish. Any player can stand anywhere he likes in the box.
"He's not affecting the goalkeeper, he's not touching the goalkeeper, he's not preventing him from getting the ball. If he prevents him from getting the ball, then it's a free-kick.
"Before the ball's kicked, he's not doing anything. He's entitled to stand where he likes so he's talking nonsense."