When selecting a national eSports team to compete in international sporting events, there are two ways for a country to do this. The "Champion Model" takes the winning team of the national tournament in that game (e.g. Arena of Valor, PUBG, Valorant, etc.) to represent the country.
The "Tryout Model" will host a selection among individual players to select the best ones to form the national team, creating a blend of players coming from different eSports teams from different owning companies.