"Our team deserves to play in the final phase of any tournament it takes part in because we show a spectacular game which is interesting for everyone," said Donetsk coach Mircea Lucescu.
"We will have to find ways to break them down as well as to reach the penalty area ... I hope the refereeing in Donetsk will help the spectacular and skilful football but not the physical one."
Lucescu, who has six Brazilians in his squad, said last week's tie was between contrasting teams.
"It was a duel between two completely different styles of playing," said the Donetsk coach. "Fulham were based on their physical strength and long passes.
"We construct our game with technique and fast dribbling. In my opinion it all resulted in a spectacular and exciting match for the fans."
Donetsk lived up to Lucescu's billing in the first half of the group phase, scoring four goals in each of their first three games.
Spain's four teams all face the threat of elimination, three of them having drawn at home last week.
Villarreal visit Bundesliga champions VfL Wolfsburg, having been held 2-2, while Athletic Bilbao visit Anderlecht and Atletico Madrid make the long haul to Turkey's Galatasaray after 1-1 stalemates.
