The match was called off approximately 40 minutes before it was due to kick-off at 9pm local time (0000 GMT).
Peru face Paraguay on Friday in Lima.
His side have gained two wins from two so far; defeating Bolivia 2-0 in La Paz before slamming Colombia 3-0 at home, which went a little way to gaining revenge for their World Cup elimination to the Colombians last time out.
Brazil will have Barcelona star Neymar back following suspension, while Argentina will be without three injured stars: Lionel Messi, Sergio Aguero and Carlos Tevez.
In Santiago, Real Madrid midfielder James Rodriguez struck a second-half equaliser to earn Colombia a 1-1 draw against Chile.
“Both games will give us different challenges, we play Ecuador away so it will be a tough game but in this moment in time Chile have a great squad so that one will be a tough test also”.
Bolivia, who lost their first two matches, lifted themselves off the bottom of the table with a 4-2 win over Venezuela.
The result leaves Uruguay third in the South American qualifying pool, three points shy of Ecuador, who top the pile with maximum points, and a point behind Chile, the only other unbeaten side.
Uruguay, missing suspended superstar Luis Suarez – still serving a ban for his infamous bite at the 2014 World Cup – struggled to contain a vibrant Ecuador side, comfortable in the challenging thin Andean air of Quito, a few 9,000-feet above sea level.
Ecuador, which showed attacking intent all game, wouldn’t be denied, and got the victor just 10 minutes later through a Fidel Martinez tap-in after Muslera parried a well-hit Jefferson Montero shot into his path.
Cavani equalized four minutes into the second half with a header from a free kick by playmaker Nicolas Lodeiro. The rebound fell to Martinez who fired the ball into an unguarded net.
Ecuador will now aim to secure a fourth consecutive victory when they travel to Venezuela next Tuesday.
Brazil forward Neymar back for World Cup qualifier in Argentina