In a one-sided first-leg affair, Al Ain edged closer to reaching the ADIB Cup's final after thrashing Al Nasr 4-1 at Hazza Bin Zayed Stadium on Wednesday.
After a goalless draw in the first half, the hosts started the second half as a completely different team when Andrii Yarmolenko found the breakthrough a minute before the hour-mark. The Ukrainian winger opened the scoring from the spot after stepping up and sending the goalkeeper the wrong way.
Matias Palacios cemented his side's lead with a curling effort from inside the box nine minutes after the hour mark.
Soufian Rahimi turned from a provider to a scorer to fire a spectacular first-time volley into the top corner of the net.
Adel Taarabt reduced the deficit when he capitalized on an error from goalkeeper Khalid Eisa to find it easy and drill the ball into an empty net.
The Moroccan midfielder grabbed his brace after pouncing on a mistake from Tozé as he cut inside the penalty area before slotting the ball into the bottom corner to make it 4-1.
The second leg will take place at Al Maktoum Stadium on Sunday, May 21st.