The French winger of Moroccan descent put the ball past Swedish goalkeeper Kristoffer Nordfeldt. The visitors tried to equalise almost immediately, albeit, Sandro Lima was denied by brilliant goalkeeping by Munir Mohamedi.
After 45 minutes, it was Omer Erdogan’s men who went into the break with a slim one-goal advantage.
Six minutes into the second half, Diouf doubled his side’s advantage by tucking the ball inside an empty net after David Akintola had rounded goalkeeper Nordfeldt.
Not willing to go down without a fight, the visiting side attacked in their numbers, yet they were unsuccessful in front of goal.
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The hosts thought they levelled matters in the 34th minute through Cote d’Ivoire’s Giovanni Sio, albeit, the effort was ruled out for offside after VAR replays.
The visitors’ ambition of holding onto their lead suffered a massive setback in the 43rd minute as goalkeeper Munir was given his marching orders by referee Yasin Kol for serious foul play.
After making a good save, the Morocco international intentionally stamped on Soner Ornek’s face.
That was the first time the 31-year-old was sent off since he began his professional career at Spanish side Ceuta B in 2008.
The penalty kick that followed the tackle was converted by Robert Piris as the first-half ended 1-1.