Reds midfielder Naby Keita replaced (substituted) the Egyptian international 64 minutes into the aforementioned Champions League group stage clash.
As you can see below, both sets of supporters gave Salah a standing ovation when he made his way off the pitch.
The 29-year-old is a world-class footballer, so it was great to see the home fans give him the respect that he deserves.
The video below was provided by Twitter user @Watch_LFC.
Mo Salah receiving a standing ovation at the San Siro when he was substituted last night. ???? pic.twitter.com/o3aFDebfkk
— Watch LFC (@Watch_LFC) December 8, 2021