Giant,tied up,and stripped by Jessie
Giant
Giant and his Hitmonlee were going to be competitors in the P1 Grand Prix. Team Rocket wanted to compete as well so they could win the grand prize. Realizing they didn't have any Fighting-type Pokémon, they decided to steal one.
Unfortunately for Giant, his Hitmonlee was the first Pokémon the trio saw. Somehow, they snuck up on him, tied him up, and stole his clothes. Using his Hitmonlee, they entered the tournament disguised as Giant. Team Rocket managed to get to the finals. However, Ash caught on to their plan when trying to beat them in the finals and was able to defeat them with his Primeape. It is not known what happened to Giant after Team Rocket robbed him. Pokémon
Giant's Hitmonlee