A Real Rival Rouser!
Ash and Paul's battle in the Sinnoh League quarter-finals rages on. Things are looking good for Ash, who has so far defeated Paul's Aggron and Gastrodon and still has all of his Pokémon remaining, but the tables start to turn when Paul sends out his new Drapion. Will Ash be able to hold his ground and defeat his Sinnoh Region rival once and for all?
Aired 12/08/2010EP 187 - A Real Rival Rouser!

2006
Pokémon the Series: Diamond and Pearl
After defeating Brandon and declining the offer to be a Frontier Brain, Ash sets off to travel through the far away land of Sinnoh. Once he gets there, he meets up with Hikari, a local trainer from the region, and they decide to travel together.