Italian-born Ghanaian winger Nigel Kyeremanteng scored the only goa for Fermana in their 1-0 win over Viterbese in the first leg of the Serie C relegation playoff.
Kyeremanteng, 22, scored the decisive goal six minutes from time to hand the side the edge.
The Ghanaian, who is on loan from Teramo, has impressed for the Serie C side.
Thanks to the win, the home team takes a step towards salvation but must pay attention to the challenge of Rocci in a decisive match in seven days time.
At the end of the two matches in the event of a tie after the second leg, the goal difference will be taken into account to determine the winning club.
The losing side will be relegated to Serie D Championship.