Mane bagged a brace at the Vodafone Arena on Wednesday night as Liverpool held Chelsea to a 2-2 draw after extra-time.
The 27-year-old got Liverpool back on level terms in the second half of normal time, before notching again in the 95th minute.
Mane was on the bench by the time the decisive penalty shootout rolled around, having been replaced in attack by Divock Origi.
As Klopp and his players prepared themselves for the all-important spot-kicks, Mane was filmed beckoning over a ball boy.
And, in a touching moment, the smiling Senegal international chucked his match-worn shirt to the child before giving them a quick hug.
Mane’s gesture went down well with Liverpool fans, who were impressed by the act of generosity from such a famous face.
And their delight was boosted after Adrian came to the fore in a nervy shootout in which both Liverpool and Chelsea were almost perfect.
Liverpool had the newly-signed goalkeeper to thank as he saved Tammy Abraham’s penalty to seal shootout success.
And they have now bagged a second European trophy in a matter of months after scooping a sixth European Cup back in June.
Mane was thrown back into the starting line-up in Istanbul having started last Friday’s 4-1 win over Norwich on the bench.
And he will be hoping to feature from the off on Saturday when Liverpool resume the new Premier League campaign by facing his old club Southampton.
Mane is part of one of Europe’s deadliest attacks at Liverpool, with Mohamed Salah and Roberto Firmino joining him on the offensive front.
And Klopp will be hoping the trio keep fit and firing this season as the Reds go in search of an elusive Premier League crown.
Liverpool have not won the first division since Kenny Dalglish led the Merseyside giants to glory way back in 1990.
However, Klopp’s men appear to be Manchester City’s biggest rivals as Pep Guardiola’s side seek to defend their top-flight title.
And they will go head-to-head in the Premier League for the first time this season when they face off at Anfield on November 9.
Liverpool skipper Jordan Henderson is keeping his feet on the ground despite their Super Cup win and he insists the focus is on doing the business against Southampton.
“We need to recover, we’ve got a big game on Saturday,” Henderson said.
“We’re delighted to win, we want to win as many trophies as we can, we’ve said that before.
“We’re delighted to come here and win a trophy and take it back. We’ve got to enjoy it now but [then] focus on recovery for a big game on Saturday.”