Football's greatest trios! Liverpool's deadly trident of Mane, Firmino and Salah has been broken up, but their heroics mean they are one of the best ever front threes... but how do their numbers compare to MSN and others?

They say everything comes in threes in life. In football, the best attacks certainly do.

It was arguably Pep Guardiola's revolution at Barcelona that has resulted in the trident becoming a deadly force in modern football, overtaking the duo in the process. Of course, managers tinker every game, but the trio is here to stay.

For years, Barcelona dazzled with their deadly M-S-N link-up, namely the heavyweight unit made up of Lionel Messi, Luis Suarez and Neymar. PSG have looked to build something similar at great expense, but so far have fallen incredibly short.