Lennon’s side wrote their names into the history books with their momentous 2-1 win over the Spanish giants at a buoyant CelticPark.
Lennon hailed his side’s achievement in beating what he feels are the best team in the world.
“It is right up there, one of the proudest nights of my career,” Lennon told Sky Sports HD2. “It’s just a monumental effort from those players tonight on the anniversary of the club.
“It is a very special occasion to do themselves justice and they’ve just beaten the best team in the world. It is two of the stiffest examinations they will ever get in their careers and they’ve come through it with flying colours.”
Lennon admitted they pinpointed Barcelona’s weakness at set-pieces with their first goal coming from a corner as Victor Wanyama netted from Charlie Mulgrew’s cross.
“We felt we could affect them at corners, we knew the back post area with Alba they mark zonal and we knew we could threaten that.”