Rosenborg star Yssouf Kone is confident Chelsea's Champions League push will freeze in Norway this week.
Ivory Coast-born striker Kone told the Sunday Mirror: "It makes it difficult for both teams but it will maybe give us an advantage because we are used to it.
"The Norwegian league has finished so we are just training, training, training for Champions League games.
"We are very focused on what we have to do. To make the second round by beating a team like Chelsea, with all those superstars, would be wonderful for us."
Last week, Kone's agent had admitted interest from Chelsea had been received for the striker.