Fenerbahce loanee Sow knows Mane well from their time together with the Lions of Teranga and feels it was always the case that he would one day be starring for one of the bigger Premier League clubs.
"I remember when he was still playing in Austria and Demba Ba [who was at Chelsea at the time] was telling him often in the national team that if he stayed serious, the Premier League would come for him," Sow told French outlet SEN360.
"And he wasn't talking about the small teams, but the big ones.
"In the end, he's signed for Liverpool.
"He listened, he succeeded and did nice things, scoring important goals and being decisive.
"I'm really happy for him."