AFC Bournemouth have signed Christian Atsu from Chelsea on a season-long loan deal.
Midfielder Miguel Pallardo has signed a new one-year deal with newly-promoted Hearts while Danny Wilson leaves.
The 23-year-old, who has been named in France's 23-man squad for this summer's World Cup in Brazil, has caught the eye in La Liga this season after netting 21 goals in 42 games.
He is under contract at Sociedad until 2015 and admits he is not thinking about his future with the World Cup on the horizon.
Griezmann told L'Equipe: "I don't really think about it - I have agents to manage that.
"They haven't told me anything so far. I am ambitious and if I left it would only be for a very big European club.
"If PSG showed an interest I would talk with my officials and agents.
"PSG is a great club that is achieving something nice. I don't favour any team - but PSG is a destination that attracts a lot of players."
Manchester City playmaker Samir Nasri has revealed his shock at not making the cut for Didier Deschamps' squad - and Griezmann is also in shock after getting the nod.
He added: "I really didn't expect to part of the list. Wearing the French team shirt is a dream and an honour."