Cristiano Ronaldo’s Champions League debut for Juventus didn’t go as he would have planned as the the Portuguese forward only lasted 29 minutes at the Mestalla against Valencia.Ronaldo, who is the highest-ever scorer in the Champions League with 120 goals to his name, saw his first-ever red card in the competition in his 154th match.Following that, a teary-eyed Ronaldo was seen walking off the pitch and that led to an immediate debate over weather it was justified or not.Ronaldo’s red card as many would say, was extremely unfair but a one-game suspension has to be served by him.UEFA will have a look into it and can take further actions and add more games to it if deemed necessary. However, if added, Juventus will have the authority to challenge the ban handed for the extra number of games.But, what was even more painful for him and his fans especially than the red card, was the way he reacted after being sent off.Also read – Champions League: Cristiano Ronaldo red-carded but Juventus beat ValenciaRonaldo was involved in a tangle in the penalty area with Valencia defender Jeison Murillo as he awaited a cross from the left.Cristiano Ronaldo was sent off for Juventus in the Champions League tonight for this…What a joke! pic.twitter.com/7qFD8zwi10433 Formation (@433Formation) September 19, 2018It did not appear too sinister but German referee Felix Brych, after consulting with his assistant behind the goal, pulled out his red card to the dismay of Ronaldo.advertisementRonaldo, who signed from Real Madrid for 100 million Euros in July, had never been sent off in his previous 153 appearances for Real Madrid and Manchester United in Europe’s elite tournament.After leaving the pitch, the five-time Champions League winner, waited by the tunnel entrance before leaving the pitch. Cristiano Ronaldo has the option to appeal against the red-card he received (Reuters Photo)Even Valencia coach Marcelino appeared to be sympathetic towards Ronaldo as the Portuguese great walked off in a state of shock.Juventus responded to the shock in positive fashion and were ahead before halftime and then went onto extend the lead in the 51st minute.They held onto their lead and emerged victorious and are currently second in Group H behind Manchester United, who are ahead on goal difference after their 3-0 win over Young Boys.Juventus will next play Frosinone in Serie A on Monday. Their next Champions League fixture is versus Young Boys at Turin on October 2.