Antoine Griezmann has become "a caricature of himself" at Barcelona, where his former Real Sociedad boss, Martin Lasarte, feels a toxic environment is taking its toll.
Quique Setien has named Griezmann on the bench for three of Barca's past four games, including important meetings with top-four hopefuls Sevilla and Atletico Madrid.
The World Cup winner was not sent on until the 90th minute against Atletico on Tuesday, with Ansu Fati introduced ahead of him in the 2-2 draw at Camp Nou.
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Barca will fall four points behind Real Madrid with five games remaining if La Liga's leaders beat Getafe on Thursday, with reports suggesting Setien has lost the backing of his players.