Tousart gives Lyon edge against below-par Ronaldo and Juventus

Midfielder Tousart netted from close range in the 31st minute to give Lyon a lead to defend when they head to Turin for the return on March 17.

The goal came with Juventus defender Matthijs de Ligt off receiving treatment, but it was just reward for an excellent first-half performance by a Lyon side enduring a mediocre campaign in Ligue 1.

They then survived late Juventus pressure to claim their finest European result since defeating Manchester City in last season's group stage.

Maurizio Sarri's side have genuine ambitions of winning a trophy that has evaded Juventus for almost a quarter of a century now, but they could not claim a precious away goal here, with Paulo Dybala seeing a late effort disallowed.

"In the first half it was not the Juve that we know. We didn't get going in attack. I am struggling to understand certain things," said Sarri.