The 23-year-old was sent home on Sunday from a training camp, although details of the injury have not been released.

"Boufal has left after examination of his injury showed he would not be capable of playing," the national team said in a statement.

Morocco have already lost midfielders Younes Belhanda, Oussame Tannane and Watford's Nordin Amrabat to injuries.

They play Finland in a friendly on Tuesday before heading to the tournament in Gabon where their first match is against the Democratic Republic of Congo in Oyem on 16 January.

A replacement for Boufal has not yet been named.