Paris Saint-Germain manager Laurent Blanc has insisted that his side can win the quadruple this season.
The Frenchman says that the task would not be easy but believes it is still possible for the reigning Ligue 1 champions.
PSG are in the last four of the Coupe de France after they overcame Monaco in the quarter-finals, and remain in the hunt for the Ligue 1 title, Champions League and Coupe de la Ligue.
"For now the only certainty is that we are in the final of the Coupe de la Ligue," the 49-year-old told reporters after Wednesday's quarter-final win.
"We are not in the final of the Coupe de France, we are far from being champions and we are far from qualified for the Champions League quarter-final but we can do it all and that's good.
"Everyone has the Chelsea match in mind but this has been a complicated week and the Lens game is an important one that we must win."
PSG travel to Stamford Bridge next Wednesday to take on Chelsea in the second leg of their tie, with the first leg finishing 1-1 in Paris.