The Royal Moroccan Football Federation (FRMF) sought clarity regarding Lionel Messi's injury, having been frustrated to learn that Argentina would be without their star man for Tuesday's friendly.
Messi made his return to the international stage last week, but Argentina were beaten 3-1 by Venezuela in Madrid and the Barcelona star was later revealed to be suffering with a pelvic injury.
That ailment will keep Messi out of Argentina's trip to Tangier, as was confirmed to Morocco in a letter on Saturday.
But having agreed with Argentina that their best team would be on show, the FRMF asked for a further explanation, seemingly seeking to ensure Messi's injury is genuine.