Barcelona could never replace Lionel Messi with the same impact that the Argentine brings. However, they’re going to be forced to replace him with someone at some point.
Sadio Mane might be that man. According to a report from TMW (via Sport), Mane might be interested in coming to Barcelona if Messi leaves. Mane already played for Ronald Koeman at Southampton and has experience with the new boss.
The best part about Mane is his adaptability as a player. He can play a variety of attacking positions and could be a great addition to Barcelona. At 28-years-old, he still has some miles left in his prime. This is an interesting one to keep an eye on.