Don't have Telegram yet? Try it now!
https://pokemonblog.com/2021/01/13/pokemon-go-players-can-now-catch-pokemon-originally-discovered-in-sinnoh-and-complete-the-themed-collection-challenge-for-fun-rewards/
Pokémon GO players can now catch Pokémon originally discovered in Sinnoh and complete the themed Collection Challenge for fun rewards