Benfica midfielder Nicolas Gaitan believes that there is very little between his side and Chelsea.
The two clubs have been paired together in the quarter-finals of the Champions League.
Looking ahead to the tie, Gaitan is optimistic that his Portuguese team are capable of progressing through to the semi-finals.
"At this stage of the Champions League every team is dangerous," he said. "Chelsea will be very difficult to beat, but it is not impossible for us to eliminate them and reach the semi-finals.
"I consider this to be an equal contest which will be very open. Home advantage will not be a factor at this stage because both clubs are of a high level."
The first leg of that tie will be staged at the Estadio da Luz on Tuesday, March 27.
