What to do when you get to safron city in Pokemon yellow how to get in silph.co?

When you arrive in Saffron City in Pokémon Yellow, you'll find that the entrance to Silph Co. is blocked by Team Rocket members. To gain access, you need to defeat the Team Rocket grunts in the surrounding area and also obtain the badge from the Saffron City Gym, which is run by Sabrina. Afterward, you can enter Silph Co. and continue your quest to thwart Team Rocket's plans. Be prepared for battles inside, as you'll encounter more Team Rocket members and potentially face the Pokémon League Champion.