Amrabat was a notable absentee from the Morocco side that beat Liberia 3-0, while he also missed their friendly with the Ivory Coast on Saturday.
According to Al Ayam, the on-loan Man United midfielder was not involved against Liberia due to an unspecified injury, making him a doubt for his club side's league game this weekend.
«We will not hide behind absences, because we knew about Amrabat's absence before the start of the camp,» Morocco manager Walid Regragui told reporters over the weekend.
«Amrabat can get injured at some point. We must find a solution and alternative, and we have players capable of filling the void that Sofyan will leave.»
Whether Amrabat was not involved due to a troublesome back injury or a fresh issue remains to be seen, but Man United have not yet addressed the potential problem.
Red Devils head coach Erik ten Hag is expected to be asked about the 27-year-old's availability when he speaks to the media on Friday ahead of the clash with Sheffield United.
Amrabat has made five appearances for Man United since arriving on loan from Fiorentina in the closing stages of the summer transfer window.
Four of his outings this term have come as a left-back, but he started in central midfield against Brentford before the international break.
Amrabat was not able to feature at an earlier stage due to a back problem, which Man United are believed to have been made aware of during his medical.
The Red Devils were handed another injury scare when Casemiro picked up an ankle injury while representing Brazil last week, but he
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