Own Correspondent|Juventus may be without star man Cristiano Ronaldo for their Champions League quarter-final against Ajax as the forward is reportedly being investigated by UEFA for swearing at Atletico Madrid fans.

Cristiano Ronaldo will miss Juventus ‘s Serie A outing against Genoa on Sunday after playing a starring role in his side’s Champions League heroics.

The Portuguese openly taunted the Atleti fans in the stands following Tuesday’s win, possibly in response to coach Diego Simeone’s similarly robust celebrations at the end of the first leg, but Allegri said he was not worried about UEFA banning his star player for the upcoming quarter-final with Ajax.

Ronaldo scored a sensational hat-trick to help overturn a 2-0 first-leg deficit against Atletico Madrid on Tuesday, defying the odds to haul Juve into the last-eight where they will face Ajax.

The Italian champions boast a seemingly unassailable 18-point lead in Serie A with 11 games to go, having dropped only six points during a hitherto unbeaten league season.

And that cushion, together with his star man’s European exertions, were enough to persuade manager Massimiliano Allegri to leave out the Portuguese for the trip to Genoa.

“I’m leaving him at home, he had played a lot and he needs to rest. Right now it would be too risky to play him,” Allegri told reporters.

“I don’t need to convince him. We spoke about it yesterday, I explained my point regarding the fixtures between now and the (Champions League) quarter finals and he agreed.”
“Everyone celebrated differently on Tuesday, there were 42,000 fans there and we could suspend them all (based on how they behaved),” he said.
“We are not afraid of a suspension that will not happen.”

The champions will face Ajax for a place in the Champions League last-four after the Dutch side eliminated Ronaldo’s former side Real Madrid with a stunning 4-1 win at the Bernabeu to go through 5-3 on aggregate.