Lyon president Jean-Michel Aulas on Saturday ruled out signing another player to cover for injured star striker Nabil Fekir who is expected to be sidelined for six months.

"Fate often hits men in top form," said Aulas of 22-year-old Fekir who ruptured cruciate ligaments in his right knee in France's 1-0 friendly win in Portugal on Friday night.

Fekir returned to the Ligue 1 club on Saturday and was immediately taken under the wing of Lyon's medical staff and doctor Emmanuel Orhant, with the club expecting him to undergo surgery for the injury.

"First of all, the rules are not in our favour for the hiring of a wildcard as this possible cover might not be on the list to compete in the Champions League," Aulas said in an interview on the club's website.

"After discussions .. we're all in agreement that we have great confidence in the group. We have Alex (Lacazette) and Claudio (Beauvue). There is also Maxwel (Cornet) who has impressed everyone and Aldo (Kalulu)," he continued.

"We said to ourselves that taking an additional player now while Nabil is going to undergo surgery isn't the best thing and it would give the young players the opportunity to make their mark."

Fekir had been in form this season scoring a hat-trick for last season's Ligue 1 runners-up at Caen last weekend.

Lyon are fifth in the table, five points behind leaders Paris Saint-Germain.