The Celtic manager believes that there is little between the two sides, despite United taking just 12 points from their opening nine games this season.
Lennon told Sky Sports News: "Dundee United are a good team, they always come on strong in the second half of the season.
"I expect it to be fraught, I expect it to be played at a very good tempo and with no little skill either. I don't think there is much between the teams in the SPL."
The SPL leaders play at Tannadice tomorrow.