#2. Slow start to the European campaign
Cristiano Ronaldo had his highly anticipated UEFA Champions League debut for Juventus during their opening fixture against Valencia this season and it couldn't have gone worse for the 5-time Ballon d'Or winner.
First, the attacker struggled against a rigid Valencia defense that got him frustrated during his time on the pitch, before he was shown a red card for clashing off the ball with Jeison Murillo after he appeared to have pulled the defender's hair.
The aftermath of that punishment ensured that he missed a golden opportunity to represent the Bianconeri against Young Boys Bern in their preceding fixture - a game in which Paulo Dybala ran riot and bagged a fantastic hat-trick - leaving Ronaldo further down the pecking order, as the likes of Edin Dzeko, Neymar, and Antoine Griezmann also scored multiple goals.