Hantz says the round of 32 clash couldn't have worked out better for Les Verts.
He told France Info: "It's the best draw. Whatever happens. It will remind us of the beautiful evenings at Geoffroy-Guichard 1970.
"It is better to play Manchester United than lose stupidly against Apoel Nicosia. It's a magnificent draw. Saint-Etienne can win.
"On paper, Manchester remains above the Greens but the Reds are having a battling season. Saint-Etienne now has a big European experience. It's a fantastic match to play."