Tuesday's Champions League action delivered and then some, with a number of shocking results reverberating around Europe.
Manchester United fans got a glimpse of what the future might hold as their incoming boss earned a huge upset victory over their bitter rivals, while the champions of the continent were downed on their own patch, giving their iconic manager more than a few headaches to consider.
There are more twists and turns expected for Wednesday, but which players stole the show on the first night of Champions League football this week?
It all started so well for Foden and City / Carlos Rodrigues/GettyImages
5. Nicolas Kuhn (Celtic)
Kuhn led Celtic to a crucial win / Ian MacNicol/GettyImages
There's no stopping Salah right now / Crystal Pix/MB Media/GettyImages
3. Tijjani Reijnders (Milan)
Reijnders was imperious at the Bernabeu / Florencia Tan Jun/GettyImages
Diaz has had a brilliant start to the season / Crystal Pix/MB Media/GettyImages
1. Viktor Gyokeres (Sporting)
Gyokeres showed his class against City / Soccrates Images/GettyImages