The pair have been in terrific form for Liverpool this season as they sit fourth in the Premier League table.
Manager Jurgen Klopp has got his side playing fluid forward-thinking football with Salah at the head of the attack.
But Murphy has analysed both players and thinks they “cheat” because they do not track back when the opposition full-backs attack.
That is because it leaves the Reds with more numbers going forward when they get the ball back, hence improving their counter-attacking threat.
And that could play into Liverpool’s favour when they entertain Tottenham on Sunday (4.30pm), believes Murphy.
“What Salah and Mane do, and I’ve watched them several times this season, is they are partly brilliant when they attack because they cheat a bit,” Murphy told Sky Sports’ The Debate.
“They don’t track full-back really that often and when Liverpool break out they break with pace.
“Those two particularly with their pace against Tottenham’s full-backs could be a problem.
“If Pochettino plays four at the back at Anfield and goes for Liverpool they are going to be in trouble.
“If he plays five at the back it’s different because you’ll have Mane and Salah running onto three and not running in behind full-backs.”