Tunisia s forward Youssef Msakni celebrates after scoring the second goal during the FIFA Arab Cup 2021 quarter final football match between Tunisia and Oman at the Education City Stadium in the Qatari city of Ar-Rayyan on December 10, 2021 (AFP)
Qatar gave the UAE a footballing lesson, scoring all goals, including a brace from Almoez Ali, in the first half.
An own goal from Ali Salmeen gave Qatar a sixth-minute lead before Ali converted a penalty to double their advantage on 28 minutes.
Boualem Khoukhi converted another spot-kick to make it 3-0 eight minutes later and Abdulaziz Hatem rubbed salt into UAE's wounds with a fourth on 44 minutes.
Ali was on target again to complete the rout just before the halftime whistle.
In Friday's another quarter-final clash, a Youssef Msakni goal gave Tunisia a 2-1 victory over Oman at Qatar's Education City Stadium.
Forward Seifeddine Jaziri gave Tunisia the lead after 16 minutes to move top of the tournament's scoring chart with four goals in as many games.
He made the most of an ill-timed jump from Oman keeper Ibrahim Al-Mukhaini to head home into an empty net following a cross from the left.
Arshad Al Alawi brought Oman level with a blistering shot on 66 minutes but Msakni had the last word, heading home two minutes later to give Tunisia a precious win.
The Carthage Eagles will face either Egypt or Jordan, who meet in Al-Wakrah on Saturday, in the last four. Qatar will play either Morocco or Algeria, who also clash on Saturday.
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