The 28-year-old Morocco international will join Quique Sanchez Flores' squad after Monday's Barclays Premier League fixture at Swansea.
"He has the qualities of the players we like," Sanchez Flores said of the player earlier this week.
"He can play at number 10; he holds the ball, he can turn quickly with the strength of a striker and escape the defensive line.
"He can also play as a winger because he has that pace and velocity - the power that adds to the options of a team."
Source : PA
Source: PA