Mane, who joined the Anfield based club in a £30m move from Southampton, was substituted after 66 minutes in the 2-0 win.
The 24-year-old, who has made a fine start to his career with Jurgen Klopp's side, was taken off with a suspected knee injury, with the Anfield fraternity praying that it was just a precautionary measure.
Klopp also revealed that the club have made special arrangements for Coutinho regarding his travel for international duty.
"I don’t get frustrated by things I cannot change. I don’t think any manager in this moment is happy about the international break," he told reporters.
"For Coutinho, he is coming back Thursday morning at 9am and only because we make a few special arrangements with flights otherwise he would come Thursday night so nobody wants this." he concluded.