Rosenborg and Lyon meet in Trondheim on Wednesday evening with both looking to build on wins in their opening fixtures.
Rosenborg’s win over Olympiakos was their first success in 13 Champions League matches, while Lyon produced the shock of the opening day by cruising to a 3-0 win over Real Madrid.
“We know what to expect and are aware we’re facing one of the best teams in Europe,” said Rosenborg coach Per-Mathias Hogmo.
“They’re clear leaders in Ligue 1 and also beat Madrid 3-0. They’ve bought big and have a really exciting team. We’ve seen Lyon’s last six matches and know every player quite well. We’re up for the challenge.
“Lyon play a high-tempo game and that gives us some defensive challenges,” added the coach.
Hogmo is without Robbie Russell and Miika Koppinen due to knee injuries while striker Thorstein Helstad is also a doubt with a toe problem.
Lyon coach Gerard Houllier refuses to be carried away by Rosenborg’s domestic travails.
“A Champions League match is, above all, a physical battle which demands a lot of effort, especially when you play a Scandinavian side,” Houllier said.
“It demands rigour, tactical and mental solidity, and a spirit of self-sacrifice. Only the media have favourites in Group F. I don’t know if Olympiacos underestimated Rosenborg, but I can assure you we will not make that mistake.”
Lyon are without Eric Abidal, who broke a foot in pre-season, while Mahamadou Diarra faces a fitness test on a thigh problem.