170In that regard, although a person who relies on such an irregularity cannot be required to show that, in its absence, the act concerned would have been more favourable to his or her interests, he or she must nevertheless prove, in a concrete manner, that such a possibility is not entirely excluded (see, to that effect, by analogy, judgment of 4 February 2016, C & J Clark International and Puma, C‑659/13 and C‑34/14, EU:C:2016:74, paragraph 140 and the case-law cited).
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