The 22-year-old insists he needs to be playing regular football in order to ensure his inclusion in France's World Cup 2014 squad, while revealing he "adores" the Premier League
The France international was seen as a key man at the Parc des Princes not long ago, having excelled through the club's academy, but since the Ligue 1 outfit's recent spending sprees things are now different.
Carlo Ancelotti has favoured a central defensive pairing of Alex and Thiago Silva, leaving the 22-year-old frustrated with a bit-part role.
The reported Newcastle, Liverpool and long-term Arsenal target has now revealed that he is willing to leave if his position has not changed by the end of the season.
"I will do everything to play at the 2014 World Cup, but I need to be playing week in, week out," he told reporters.
"I cannot accept playing just a few minutes this season and next because this is a decisive moment in my career.
"At the end of the season I will sit down with my agent and club officials and clear up the situation.
"If I have to leave PSG to keep my place in the France national team, then I have no choice but to leave."
The Magpies are said to be big admirers of Sakho's, and having signed a number of French players in recent times could be seen as favourites for his signature, but many other sides are also touted as potential buyers.
And the youngster has provided hope for the Premier League club chasing his services, by revealing his love for the league.
He beamed: "I adore the English Premier League."