Chelsea legend Ruud Gullit says they must take seriously the Europa League.
"The Europa League trophy is still very important," he said. "Everybody knows that it is a stepping stone for a lot of clubs and for their players. It is important for a player to have that contact with other European clubs.
"It is a major trophy to win, look at Atletico Madrid last year. Winning it put them on the map. If I was still playing I would love to win it."