"I don't think it will be my last match", Sarri told reporters on Thursday, when asked if he thought he would be axed if the team is eliminated.
Juventus emerged from the three-month suspension of top flight football to see off the challenge of Lazio and Atalanta and claim the 2020 Serie A title - their ninth championship in a row.
"I think that is painting our directors as amateurs", he replied. They will decide whether to continue or to change.
The 33-year-old has been Juventus' poster boy since his 2018 arrival in Turin, having scored 63 goals in 88 appearances in all competition for the Old Lady.
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Juventus are now looking to overturn a 1-0 deficit from the first leg that was played away from home before the coronavirus-enforced break.
"Ronaldo is training in the right manner", said Sarri.
The first thing that Juventus have to do is comeback from the 1-0 deficit that Lyon bring into Friday's game, thanks to a goal from Lucas Tousart, who has since moved to Hertha Berlin. They lost the League Cup final on penalties to Paris St-Germain last Friday. "He played many games in a short time, he rested a little and now he has trained with intensity and strength".
"We won't only want to defend; we will also want to score a goal".
"With the first leg result too, it's a very tough game we need to approach with calm and focus".