Here's what you need to know about when the forward will take his second bow in Europe for the Red Devils, including which TV channels to watch it on
Cristiano Ronaldo returned to the club where he initially became a global superstar on transfer deadline day, rejoining Manchester United from Juventus in a £20 million ($27m) deal.
The 36-year-old was given back his famous No.7 jersey by new strike partner Edinson Cavani upon his arrival at Old Trafford, and has already made his first appearance for Ole Gunnar Solskjaer's side in the Premier League.
But when will Ronaldo take his second bow for the Red Devils in the Champions League?