The 24-year-old sustained meniscus damage in a challenge with Leighton Baines in last weekend's Merseyside derby win.
"I love giving these boys an opportunity but it has to be the right situation and the game against Bournemouth didn't look like the flawless moment to give them the responsibility for the rest of the game", said Klopp.
Liverpool coach Jurgen Klopp is certain that Mane needed surgery; as a result, it is "pretty much impossible for him to play again this season".
The season is over for injured Liverpool star Sadio Mane, manager Jurgen Klopp has confirmed.
He will have a long break until next season.
"At half-time I had a hard decision to make because it wasn't clear that Philippe or Roberto could play 45 minutes", Klopp said.
The Reds came from a goal down to beat the Potters 2-1 at the bet365 Stadium, courtesy of second-half goals from substitutes Philippe Coutinho and Roberto Firmino.
Klopp also insisted that he is not now bothered about whether qualifying for the Champions League would be a failure.
Stoke have lost three in a row in the Premier League - and have lost their last two meetings with Liverpool 4-1 at Anfield - but Klopp has a lot of respect for Mark Hughes's team.
Soon after that leveller, another Brazilian won the game for the Merseysiders, with Firmino lashing home an absolute cracker from 22 yards which left Lee Grant in the Stoke goal with no chance.
That was genius, and I'm really happy for him-he saved our life today.
Liverpool got bad news earlier in the week, when it was announced that Sadio Mane was going to have season-ending knee surgery.
"Yes, we don't have this experience".
"We don't play any of our rivals anymore so we can't influence them".
"Phil is still ill", said German boss Klopp.
And the attacking midfielder certainly changed the game when he was required at half time, scoring shortly after coming on as Liverpool came from behind to claim all three points. We thought he might be good enough for 30 minutes.