Mane joined Liverpool from Southampton this summer.
Adam Lallana celebrates with Dejan Lovren after scoring the third goal for Liverpool
Mane joined the Reds from Southampton - like Lallana did two years earlier - in a deal reported to be worth around £30 million, according to the Liverpool Echo.
Liverpool's Saido Mane shoots
The Senegal international had an impressive goal return during his time with the Saints having scored 25 goals in 75 games - including on four occasions against Liverpool last season.
Lallana has told the official Liverpool website: “He will give us a completely different dimension and off the back of the last two seasons I’m sure we weren’t the only team in for him.
“It’s a great capture and I’m looking forward to playing alongside him.”
Liverpool manager Juergen Klopp and Saido Mane before the match
From the pre-season games the Reds have taken part in already, Mane has demonstrated his pace and ability to break beyond the opposition line - something which Liverpool seem to have lacked prior to his arrival.
There is some suggestion that Lallana could struggle to get into the side ahead of Mane given he played on the right last season, and it's where this summer's signing has been operating so far. It will be interesting to see how often they play together, or who plays ahead of the other - and in what games.
Lallana seemed to be one of Klopp's more trusted players since his arrival in October, and took to the pressing style implemented by the Liverpool boss right away.
The England international is hoping to play his first part in a pre-season game when they face Chelsea next week, while Mane has featured in every game so far - which could be a factor in Jurgen Klopp's team selection when the Premier League season gets underway next month.
Liverpool's Adam Lallana in action with Everton's James McCarthy