http://www.sportthesis.com/2017/04/liverpool-boss-jurgen-klopp-revealed-saido-mane-could-miss-rest-of-season.html?m=1

The Senegalese fell awkwardly in the Merseyside derby win and in the
process twisted his knee, he was replaced by Divock Origi who scored
the third goal in the 3-1 win to secure the three points.

The club don't know how serious the injury he sustained, the swelling
is yet to come down result from a scan won't really be accurate.

Mane will definitely miss wednesday's clash against Bournemouth at
Anfield.

Klopp told Reporters : “It’s not 100 per cent clear. We had an
assessment and a scan, but have to wait a little bit until the knee is not
that swollen anymore.

“The only thing I can say for sure is that he will not be available for
tomorrow. All the rest, we just have to see.

“It’s not very positive, we have to say it like this, but we cannot say
what it is exactly. We have to wait.”