Ghana's Berekum Chelsea can book their place in the African Champions League second round on the back of an impressive first leg win against Raja Casablanca.A draw on Sunday in the second leg will be good enough to take the Ghanaian champions through, having scored 5-0 in the first leg win.Chelsea hold the upper hand though they will be cautious going into the game with the three-time African champions needing to overturn the first leg deficit.Hans Van der Plyum, Chelsea coach was left delighted with his sides performance at the Golden City Park a fortnight ago but expects a tough clash in Morocco.Qualification for Chelsea will see them meet the winner of the Dolphin FC vs Cotonsport match.