Mane spent two seasons with the Saints after his arrival from Red Bull Salzburg and scored 21 league goals in 67 appearances.
The England global has also provided 11 assists as City attempt to achieve an unprecedented quadruple.
The most notable one is, of course, the 1999 Premier League season when arch-rivals Manchester United won the treble.
With a squad lacking reinforcements in the a year ago due to stadium building costs, they are third in the league, but only a point ahead of fifth-placed Chelsea.
"But I don't think there will be any favours given, the way he sets up tactically, he'll play five at the back and make it a hard game".
This means James Milner will move into the right-back role while Alexander-Arnold plays at left-back and the duo of Van Dijk and Joel Matip start in central defence. He's had a fantastic season.
There are a lot of players on the Man City team I could've voted for. But I am just being honest.
The figures from Deloitte's Sports Business Group looked at the financial performance of the last eight clubs in this year's competition, taking data from their Money League Report.
If you haven't already heard of this unique couple, who met in late 2001 after attending an official Liverpool Singapore Branch fan club, they went viral a few years back when they hosted the most incredible themed-wedding.
"That is actually what I love, and we showed that, especially in the Champions League very often".
"It could have been better but it is how it is".
"We don't expect, or take it for granted, that we will be in the Champions League final again but having the chance again is really unbelievable", Klopp added.
Watch Liverpool and Manchester City in action in the Champions League exclusively on BT Sport.