The federation wrote in a statement that the mission of Queiroz, who coached Arab teams Egypt and the United Arab Emirates as well as Qatar, ended "by mutual consent between the two parties," adding in a later publication that the contract with Marquez came "after the positive results he achieved with Al Wakrah."
Queiroz was appointed to his post last February on a 4-year contract, with the aim of qualifying for the 2026 World Cup after Qatar's disappointing participation in the 2022 World Cup on home soil with Spanish coach Felix Sanchez, when he suffered 3 defeats in 3 matches in the group stage.
During their participation in the Gold Cup of the Concacaf region, Queiroz's Qatar lost to Haiti 1-2, drew with Honduras 1-1, then beat Mexico 1-0, and in the quarter-finals suffered a crushing loss to Panama with a clean four.
The Portuguese coach also led Qatar to two wins in the first two matches of the 2026 World Cup qualifiers, against Afghanistan (8-1) and India (3-0), after losing to New Zealand 0-1 in a friendly and drawing with Russia 1-1 last September.
At the Jordan International last October, he drew with Iraq before winning the penalty shootout, then suffered a heavy 0-4 defeat to Iran.
In 12 matches with Qatar, Queiroz has won 5 times, drawn two and lost 5.