It was Ronaldo's first red card in 154 Champions League games, and the decision means he could miss a return to Old Trafford when Juventus plays Manchester United next month if gets at least a two-match ban.
NAIJ.com previously reported that Cristiano Ronaldo has agreed to join Italian champions Juventus in a staggering £88m deal after club's President Andrea Agnelli traveled to Greece to convince him to join the Turin side.
"You could say he's increased the players' desire to prove themselves", Allegri said.
Substitute Marco Asensio nearly added a late third with a delightful no-look finish, but Mariano did wrap up the scoring in the first minute of added time with a fantastic turn and strike into the top-right corner on his first appearance since returning from Lyon.
But there is a reason why Ronaldo stands as the favourite to once again rule Europe when it comes to the Champions League. After the red card the match was made even.
"As far as I could see, it was a pretty normal clash", Bonucci said.
Manchester City suffered a surprise 2-1 defeat at home to Olympique Lyonnais.
The win, however, took a backseat to the drama that unfolded in the first half.
Gareth Bale added a second when he ran onto Luka Modric's excellent through-ball and slotted home.
Valencia dominated possession after that but Juventus's well-drilled defence held firm until stoppage time when Brych awarded the third penalty of the game.
A three-goal win against Roma at the Santiago Bernabeu gave three-time reigning European champions Madrid three Group G points in their first game in the competition under new head coach Julen Lopetegui.
Real next travel to CSKA Moscow on October 2, after the Russians came back from two goals down to salvage a 2-2 draw at Viktoria Plzen, with Everton loanee Nikola Vlasic scoring an injury-time penalty.
Bayern Munich beat Benfica 2-0.
Ajax cruised to a 3-0 victory over AEK Athens in Amsterdam earlier in the day to sit atop the early standings, with Argentinian Nicolas Tagliafico scoring twice.