Arata, who signed for French club Castres not long after his heroics in the World Cup four years ago, has recovered from a finger injury and will face Les Bleus in Lille on Thursday.
The 27-year-old half-back is one of five France-based players in the matchday squad but hooker German Kessler, who plays for second-tier Soyaux-Angouleme, misses the game with an injury.
Captain and centre Andres Vilaseca as well as replacement Agustin Ormaechea will become the first Uruguayans to play at three World Cups, and set a new appearance record in their ninth game.
After opening their campaign against hosts France, Uruguay, ranked 17th in the world, also face Italy, Namibia and New Zealand in Pool A.
๐ฆ๐ฒ๐บ๐ฎ๐๐ผ๐ฐ๐ถ๐ฎ๐น ๐ถ๐ ๐๐ต๐ฒ๐ฟ๐ฒ ๐ฟ๐ฒ๐ฎ๐น ๐ฝ๐ฒ๐ผ๐ฝ๐น๐ฒ ๐ฐ๐ผ๐ป๐ป๐ฒ๐ฐ๐, ๐ด๐ฟ๐ผ๐, ๐ฎ๐ป๐ฑ ๐ฏ๐ฒ๐น๐ผ๐ป๐ด. Weโre more than just a social platform โ from jobs and blogs to events and daily chats, we bring people and ideas together in one simple, meaningful space.