#Gharafa overcame the challenge of Al Ahli in the other quarterfinal
It is the 43-year-old's first job since leaving Manchester United, as Mourinho's number two, last year.
QSL leaders Al Sadd will take on Qatar SC in the quarterfinals.
The new deal will keep the Algerian striker with the club until 2024.
Rayyan lead Group B with12 points from four games.
The five-day course was conducted under the guidance of QSL’s Acting Executive Director of Football Development and Competitions Ahmed Khellil Abbassi and Head of Football Development Miguel Heitor.
The Spaniard was hired in place of Milan Macala
The veteran coach was all praise for his rivals Duhail, saying they were the better team.
An own goal by Lucas Mendes and late strikes from Salem Al Hajri and Baghdad Bounedjah helped Sadd to a 3-1 victory.
The former Iceland coach was officially unveiled on Tuesday.
Jesualdo Ferreira’s Sadd has the momentum as they take on leaders Duhail SC.
The win helped Sadd reduce the gap with leaders Duhail to just one point.
The result means leaders Duahil are now under tremendous pressure from Al Sadd.
Lucca double helps Al Rayyan thrash Al Kharaitiyat 6-0.
Gharafa take on Al Ahli in another tough fixture.