Avram Grant is hopeful that Didier Drogba will be fit to face Rosenborg tomorrow night, and insists we will not be underestimating our opponents.

Drogba missed Saturday's win at Derby, but after training with the team on Monday, and in the Lerkendal stadium this evening, he is expected to appear as we aim to seal our place in the Champions League knockout stages.

Speaking on Drogba, Grant said: 'We are before training so I cannot tell you 100 percent, but I think he will be fit for tomorrow.'

The clash is the follow-up to September's 1-1 draw at Stamford Bridge, which marked José Mourinho's last match as manager. Since then Rosenborg have gone on to shock Valencia twice, and currently sit second in Group B, behind Chelsea.

'Rosenborg is a big surprise. It's many games, but to beat Valencia twice is not easy. If they qualify now it's no surprise, before yes,' Grant admitted.

'I was with the team at the last game. and I saw them [Rosenborg] against Maccabi Haifa two years ago. Every opponent of us we know everything before the game, and they know everything about us, so we need to wait and see.'

A win would see us guarantee our progression into the knockout phases, extending our Champions League season until at least February, and Grant believes we must play with this as our aim, in spite of another group game still to go.

'All my life in football I didn't say we'd take a draw. We want to win even here. We know we are playing a very good team. We remember the first game, it was not so good for us, but most important is we qualify,' he maintained.

'The players like to win. We are not happy from a draw at home, we remember this game, it feels like a long time ago, but half of the stadium was empty, and supporters were booing us at half-time. The result was not so good but since then we won a lot of games, and are in a better position in the Champions League.'

Drogba's probable return fails to mask our seemingly ever-present injury list, with the squad still lacking Petr Cech, Paulo Ferreira, Ricardo Carvalho, Florent Malouda and Michael Ballack.

'We hope Petr Cech will be available at the end of the week and will see at the time. Paulo Ferreira maybe, Carvalho will take longer but quicker than we thought,' Grant explained, adding: 'I think in one week Malouda will be ok, he also suffered an injury. It was not good because he was in good condition, but this is football. I am hoping I will see 85 per cent of the squad fit.

Ballack had a run out in the reserves last night, and Grant is upbeat about the German's progress after being out for seven months with an ankle injury.

'In a few weeks we will see him back, he played 45 minutes in a reserve game, he felt good, after a long time with injury. If it continues like this I think we will see him back. He's very important to our team and we are waiting for him,' said the Israeli.

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Bookmakers Paddy Power list Didier Drogba at 6/1 to score two or more goals in the game.