Cristiano Ronaldo tells Andrea Pirlo what Juventus must do next after Champions League exit

Champions League - Round of 16 Second Leg - Juventus v Olympique Lyonnais - Allianz Stadium, Turin, Italy - August 7, 2020 Juventus' Cristiano Ronaldo reacts during the match [COURTESY]

Cristiano Ronaldo has urged Andrea Pirlo and Juventus to apply "critical thinking" as they look to bounce back from their Champions League disappointment.

The Bianconeri crashed out of Europe's premier club competition on away goals at the hands of Lyon on Friday, despite Ronaldo registering both strikes in a 2-1 win on the night.

It saw the Juve hierarchy dismiss boss Maurizio Sarri, despite winning Serie A, and replace him with club legend Andrea Pirlo.

While Ronaldo didn't specifically mention the managerial situation, he stressed the importance of change ahead of the new campaign.

FC Barcelona v Juventus - UEFA Champions League Final - Olympiastadion, Berlin, Germany - 6/6/15 Juventus' Andrea Pirlo before the match [REUTERS]

"The 2019-20 season is over for us, much later than usual but yet sooner than we expected," Ronaldo wrote on Instagram.

"Now it's time for reflection, time to analyse the ups and downs because critical thinking is the only way to improve.

"A huge club such as Juventus must always think like the best in the world, work like the best in the world, so that we can call ourselves one of the best and biggest clubs in the world.

"Winning the Serie A once again in such a difficult year is something that we are very proud of.

"Personally, scoring 37 goals for Juventus and 11 for the Portuguese national team is something that makes me face the future with renewed ambition and desire to keep doing better and better each year.

"But the fans demand more from us. They expect more from us. And we have to deliver, we must live up to the highest expectations.

"May this short vacation break allow us all to make the best decisions for the future and come back stronger and more committed than ever. See you soon!"