Josep Maria Bartomeu is treated as a "black sheep" and gets unfair criticism at Barcelona, according to former Real Madrid president Ramon Calderon.
Bartomeu is under fire at Camp Nou after Lionel Messi asked to leave the Blaugrana at the end of a hugely disappointing season.
The six-time Ballon d'Or winner's transfer request followed Barca's humiliating 8-2 Champions League defeat to eventual winners Bayern Munich.
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But Calderon, who previously served as president at rivals Real Madrid, has sympathy for Bartomeu, whose position is up for election in March.