Cristiano Ronaldo was controversially sent off on his Champions League debut for Juventus. © AFP Juventus believe they can win the Champions League with Cristiano Ronaldo, but they had to start by beating Valencia without him after he was controversially sent off on his debut in the competition for the Italian champions on Wednesday. A tearful Ronaldo left the pitch in disbelief in the 29th minute, having aimed a petulant, but seemingly harmless, kick at Valencia defender Jeison Murillo. The Portuguese player then made contact with Murillo’s head while urging him to get up. Ronaldo dropped to the floor like the tournament was lost after German official Felix Brych brandished the red card but Juve showed more composure, Miralem Pjanic scoring twice from the penalty spot to clinch a comfortable 2-0 win.Valencia were even awarded a third spot-kick of the match deep into injury-time but Daniel Parejo missed.It remains to be seen how UEFA judge Ronaldo’s offence, and dissent, but he is set to miss the next European game at home to Young Boys on October 2.After that comes the more threatening double-header against Manchester United.”I can only say that VAR would have helped the referee make the right decision,”…