Frank Lampard admits UEFA Champions League glory is more important to Chelsea than domestic success.
The Blues are the reigning Premier League champions, but are in grave danger of allowing that crown to slip from their grasp.
A goalless draw with local rivals Fulham on Monday has left them fifth in the standings, 12 points adrift of leaders Manchester United.
While league glory appears unlikely, Carlo Ancelotti's side have made impressive progress in Europe this term.
They sailed through the group stage and will fancy their chances against Danish outfit FC Copenhagen in the last 16.
With a path to continental success opening up in front of them, midfield talisman Lampard claims conquering Europe has become a bigger priority for the Blues than maintaining their standing at the top of the English game.
Asked if he would be prepared to sacrifice the Premier League title for a Champions League winners' medal, he said: "It's a horrible question, but I would say I would.
"I hate putting one above the other but having won three Premier League titles, the Champions League is the one to win."
Lampard also believes that prolonged progress through the Champions League will help Chelsea to get a faltering domestic campaign back on track.
He added: "It depends on the squad but I think if you're going well in the Champions League it can help your league form.
"If you're winning in Europe that form can be carried into the league."