Sitting on the Lorient bench will be coach Christian Gourcuff, Yoann's father.
"It's true that destiny does strange things sometimes," Gourcuff, who joined Lyon from Girondins Bordeaux in a deal worth 22 million euros, told reporters. "Playing against my father will be a bit bizarre."
The France playmaker, the most spectacular Ligue 1 signing during the transfer window, warned Lyon fans not to expect too much from him.
"I don't see myself as the Messiah or a great conductor," said the discreet, almost shy 24-year-old.
"Football is a team sport and my qualities are to help the team play. I'll be part of the group and will try to blend in as well as possible."
Lyon badly need midfield inspiration after picking up just four points from their first three games.
REMY CLEARED
Champions Olympique Marseille have also made a slow start and have been busy in the transfer market before their visit to Bordeaux on Sunday.
The club breathed a collective sigh of relief on Tuesday with the news that striker Loic Remy had been cleared to play despite a heart problem.
The 23-year-old had been diagnosed with a heart defect last week after joining from Nice on a five-year contract.
"You're not in the best conditions when you're told your career could be over but now I feel relieved," Remy told a news conference. "It's taken a weight off my mind and I'm ready to play on Sunday."
Marseille coach Didier Deschamps might have to wait a bit before fielding his other reinforcement, France striker Andre-Pierre Gignac, who joined from Toulouse and is recovering from an ankle injury.
Gignac, who was born near Marseille, was delighted with the move.
"My blood is blue and white," he told reporters. "I have plenty of pictures of me as a kid wearing the Marseille shirt."
