The Bhoys take on the Russians at the Luzhniki Stadium in their second Group G fixture and Lennon knows very well what former Celtic winger McGeady is capable of producing for tonight's opponents.
"He has improved since his days at Celtic," he said. "In the games I have watched Spartak play, Aiden has probably been their best attacking player.
"He looks in good condition. We all know how good he is on the ball but his movement off the ball is excellent. He covers the ground very quickly and he will be a threat.
"He will want to win the game and he will want to play well.
"I think there is an extra edge when you are playing against your former club and he will want to show everyone how his all-round game has improved since he left."