Juventus coach Max Allegri was reluctant to discuss Cristiano Ronaldo's dismissal during their Champions League win at Valencia.

Felix Brych showed the veteran a red card for an incident involving Jeison Murillo, although the Italian coach didn't want to focus on the perceived injustice the Bianconeri felt.

"You need to give yourself time to relax and reassure yourself," he confirmed.

"Things have gone very badly with the red card, but you have to start thinking about preparing for Sunday.

"These situations always leave you feeling bitter, but it's important to know how to react."