The Ivory Coast striker missed Chelsea's first three European games of the campaign after picking up a suspension for his rant at referee Tom Henning Ovrebo in May.
Blues brothers: Lampard is relishing the return of Drogba
Drogba was angry at Ovrebo turning down strong penalty appeals in theBlues' away-goals defeat to Barcelona and his reaction saw him ruledout as Chelsea beat Porto, Apoel Nicosia and Atletico Madrid.
Raring to go: Drogba
Drogba is back in the squad for the return trip to face the Spaniardstonight (Tuesday) and Lampard said: 'It's a big boost to have him backin the Champions League. Didier is a top-class player and in greatform. Everybody would want him back and involved, although we've donevery well without him.
'It's just a big bonus he's back. He can step straight in and carry on with his League form in Europe.'
Drogba has nine Premier League goals to his name this season and coach Carlo Ancelotti told the Evening Standard: 'It's important to have Didier back. The team did very well without him but now he can help us in the Champions League.'
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