Lyon share stalemate with Ajax
A cross from Michel Bastos bounced off Gomis's foot and went over the bar and the Lyon striker also missed the target after being set up by Jimmy Briand.
Unmarked winger Miralem Sulejmani came closest to scoring for Ajax eight minutes before the interval, his header going wide when he only had goalkeeper Hugo Lloris to beat.
Lloris denied Ajax in the second half with a breathtaking save thwarting a long-range effort from playmaker Christian Eriksen.
"We are satisfied with a point," Ajax coach Frank de Boer told reporters. "Both teams had their chances but the way Lyon switched from defence to attack was very efficient.
"We have to realise that we need more patience and need to make the right choices on the ball."
Lyon coach Remi Garde also seemed relatively pleased to start the competition with a point.
"I did not expect a clean sheet today as this is a higher level of football than the French league," Garde said.
"But we stayed concentrated and never forgot our tactical plan. The only thing we occasionally lacked was aggression."