It is decisions like this that have left Petit exasperated with Arsenal.
It is not just the Gunners transfer business that has Petit worried, but also the performances of the senior players at the club.
Unlike Arsenal, things are looking bright for Chelsea and Petit has been impressed with the job Thomas Tuchel has done at the club since replacing Frank Lampard in January.
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Petit only sees improvement for the Blues and thinks they have an exciting time ahead of them.