The three of them are part of the America team, made up by 80 athletes, including 29 Olympic and world medalists, according to IAAF official website.
Silva, London 2012 Olympic runner-up and Beijing 2015 world champion, was able to recover in time from an injury to his right leg and she will be present in the major tournament.
In the current season, she has a record of 4.80 meters achieved in the tenth stop of the Diamond League based in Monaco, last July 20, and she also won the Central American and Caribbean Games of Barranquilla, performance also reached by Napoles and Perez.
The latter, recent winner of the Diamond League final event that had its final in Brussels, Belgium, ranked second last Tuesday at the IAAF World Challenge Meeting held in the Croatian city of Zagreb.
Her best results in 2018 also include the title in the North, Central American and Caribbean (NACAC) Championship that hosted Toronto, Canada; while her season best (SB) is of 67.82 m, thus appearing third in the universal ranking.
Meanwhile, Napoles´SB is of 17.34 meters, record which with he won in Barranquilla and is also his personal best.
The IAAF Continental Cup, which takes place every four years, had its first edition in Split (Croatia) in 2010, with victory to the America team, and the second one in Marrakech (Morocco), in 2014, with win to the European squad.