"Bayer Leverkusen are not very consistent at the moment, a bit up and down," said Steffen, who was in the Borussia Dortmund squad that won the Champions League in 1998 before joining us in 1999. "They can win well one week and pushed Bayern Munich all the way recently but then they lose like they did at Nurnberg at the weekend.
"If Spurs score first, I believe they can then take control with their passing game because Bayer Leverkusen have struggled when they haven't scored first. I also believe Spurs can create chances against this team but they will have to be solid defensively, because Bayer Leverkusen can play good football as well."
Steffen picked out Andriy Voronin, Sergej Barbarez, Stefan Kiessling and Bernd Schneider as the key players.
He added: "Barbarez has been playing in midfield, he's normally a striker. He moved from Hamburg and is always dangerous in front of goal, if he gets in those areas he will always have a chance to score. For me, he's a quality player.
"Kiessling is another player who arrived this season, this time from Nurnberg, Voronin is a Ukraine international striker who on his day is very dangerous.
"Schneider, if he's fit, is the main man in midfield. He couldn't play against Nurnberg at the weekend and he's important to them, he creates most of the chances. If he does play, I would expect them to move Barbarez back up front.
"It is a difficult place to go, a smaller stadium that holds 22,000 but it can be a great atmosphere, however, I am confident Spurs can do well in this game. They have been very impressive so far in Europe."
Steffen Freund believes the first goal will be vital in Thursday night's UEFA Cup clash against Bayer Leverkusen.Our former midfield favourite and German international is confident we can continue our fine European form at the BayArena in our third match of the group stages.