The Senegalese attacker is back at the club after his nation were dumped out of the African Cup of Nations.
The African Cup of Nations is still going on for many a team, which means several Premier League clubs are still without their star players.
The likes of Yaya Toure and Wilfried Bony for instance are still with the Ivory Coast while Nabil Bentaleb and Riyad Mahrez are still representing Algeria.
The flying winger had been in great form before leaving, including scoring a fantastic goal against Arsenal from the most acute of angles.
But Senegal finished third in their group, behind Ghana and Algeria, meaning they are out of the competition.
Mane missed the opening game against South Africa before featuring against Ghana and Algeria, however they could not help the Lions of Teranga into the second stage of the competition.
Good news for Southampton however is that he is back at the training ground.
He has even been snapped back at the club, as posted on the Twitter account of Southampton's kitman Mark Forbes.
Southampton face Swansea City in the Premier League on Sunday and fans of the club will be hoping this picture means Mane will be present.