Liverpool manager Jurgen Klopp admitted that he spoke to Mane after the Liverpool winger was caught on camera reacting furiously after his substitution.
The 6-time European Champions made easy work of their hosts Burnley on Saturday as an own goal from Chris Wood followed by two strikes from Firmino and Mane helped the Reds cruise to a 3-0 victory at the Turf Moor stadium.
The Senegalese was in fine form as he coolly dispatched a Roberto Firmino pass to make the score-line 2-0 at the 37th minute mark, before the Brazilian himself killed the game off with his 2nd half strike.
While he showed no signs of discontent on the pitch, Mane reacted furiously as he was being substituted off for striker Divock Origi in the final stages of the game, throwing his hands in frustration.