Sana gives Canada hope as he strikes with the key wicket of Waseem, who skies it high as he uses his feet and looks to club it over midwicket.
The ball goes high on the leg side and Dhaliwal keeps his cool to complete an easy catch even as his team-mate nearly collided with him.
Waseem walks back for four as UAE suffer an early blow, in the third over.
Alishan Sharafu gets off the mark with a single and Aryansh takes one off the next as Sana bowls a superb over.
Heyliger follows up with a tight over in which he concedes just four runs, including three dots.
Just one boundary for UAE in the first four overs as Canada's pacers show great discipline with their line and length to build some pressure.