Rivero, 24, was a key player for Gimnasia, which defeated Quimsa 4-2 in the final series and won the top basketball tournament in Argentina after 20 years. He averaged 6.1 points and 4.2 rebounds in 17 minutes per game in the season, and scored 14 points in the sixth and decisive game of the final against Quimsa, contributing to Gimnasia's 68-56 win that sealed the title.
The pre-selection of 24 players will be reduced to 14 for the final list, which will be determined after the players complete their training sessions starting on August 14. Argentina will play two games in the fourth window, the first against Puerto Rico on August 27 at 19:10 at the Polideportivo Islas Malvinas in Mar del Plata, and the second against Canada on August 31 at 20:10 in Quebec.
Argentina's coach, Pablo Prigioni, has included several familiar faces in the pre-selection, as well as some new players, including Rivero. The team will begin training on August 14, and the final list of 14 players will be determined after the training sessions.