Abdeslam Ouaddou says Nancy are travelling to Scotland to eliminate Motherwell from the Uefa Cup on Thursday.
The Ligue 1 outfit hold a slender advantage over the SPL side following their 1-0 first leg win on home soil.
Ouaddou believes the team need a goal to finish off Mark McGhee's troops in order to avoid any late drama at Fir Park.
The Moroccan defender believes Well will need to come out of their shell following their defensive display in France and that will only serve to boost Nancy's prospects of advancing.
"Nancy go to Scotland to finish the job," he told skysports.com. "1-0 is not sufficient and we desire a goal to develop a much more comfortable match. This is our challenge.
"I believe that the score in France not was just. We have worked more on the pitch but Motherwell were very defensive and that always complicates things.
"At home Motherwell need to change their style of play and this will be our big advantage. If they attack the space will open up for us, but perhaps the Scottish side will not totally switch to an offensive strategy.
"In the squad nobody's thinking of defeat. If Nancy are eliminated by the Scottish it will be a disaster and the players will be solely responsible.
"I am optimistic but in the football nothing is easy. The danger is Motherwell will defend. But in the second match they are forced to change their mentality.
"Our minimum mission in the Uefa Cup is to enter in the group phase of the competition and with this objective we travel to Scotland."