Celtic did themselves no harm in winning their Champions League play-off first leg 2-0 in Helsingborg last night.
The Glasgow giants completed a vital victory in Sweden against Helsingborgs IF to give themselves every conceivable chance of qualifying for the group stage of the prestigious competition.
Kris Commons volleyed the Hoops ahead in the second minute, finishing a Georgios Samaras cross, before the Greek forward added to the lead in the 75th minute with a header from a Commons corner.
It puts Celtic in a very strong position ahead of the return leg at Celtic Park next week but Lennon knows not to count his chickens just yet.
"The job is only half done. There is a big game at Celtic Park to come," he told ITV1.
"Helsingborg showed how dangerous they can be."
Celtic will now prepare for a trip north to Inverness to take on Caley in the league on Saturday before the return bout with Helsingborgs on Wednesday which will decide their Champions League group stage fate.
