The 25-year-old playmaker endured a mixed first season at Arsenal after his club-record £42.5m switch to the north London club from Real Madrid last summer.
Ozil spent the final part of the season sidelined with a hamstring injury after scoring five goals and making nine assists in 26 Premier League appearances.
The former Werder Bremen man has continued his form into the World Cup, although manager Joachim Low has continued to back the Arsenal midfielder.
But former Barnsley and Middlesbrough midfielder Fjortoft, who is currently a Bundesliga expert, questioned Ozil’s continued inconsistent form.
What's wrong with Özil? I love that player. But now he is running around as a shadow of his great himself.
— Jan Aage Fjortoft (@JanAageFjortoft) July 5, 2014
Ozil scored an extra-time goal in Germany’s 2-1 victory over Algeria in the World Cup last 16.
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