Cavani missed a golden chance four minutes from time when a fallen defender allowed him a one-on-one chance with Al-Owais at the top of the box but Saudi keeper did well to get a foot on the PSG man's effort and keep it out. The goal put Uruguay second in Group A with a maximum six points behind hosts Russian Federation.
Suarez's goal was by no means pretty, but it did the trick.
A win over Saudi Arabia would secure two-time winners Uruguay's place in the last 16 of the World Cup and Tabarez will opt for a wealth of experienced heads, with wingers Cristian Rodriguez and Carlos Sanchez set to be promoted to the starting line-up after both coming off the bench against Egypt.
"There is no doubt that facing the Uruguayan team is hard and that it is known for its global stars, but we are determined to improve our image from the previous match and the joy of the Saudi fans", said Saudi Arabia midfielder Taisir Al-Jassim.
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Qualcomm's Snapdragon 845 takes center stage, with the chipset paired with 8 GB of RAM and a healthy 256 GB of storage . Oppo Find X comes with a 6.42-inches AMOLED Full HD+ display with 2340 x 1080 resolution and aspect ratio of 19.5:9.
Despite only 3.4 million people to choose from, Uruguay have long punched above their weight in global soccer, lifting the first ever World Cup in 1930 and producing the infamous "Maracanazo" by beating hosts Brazil to win it again in 1950.
Five minutes later, Cavani had another chance for Uruguay following a fast break but shot-stopper Mohammed Al Owais made a crucial save one-on-one.
The Saudis continued to move the ball around but barely threatened the typically gritty Uruguay defence.
The second half was even scrappier, with Saudi Arabia too limited to run riot as Uruguay were happy with a narrow advantage.