League Unleashed!
The first round of the Sinnoh League begins. Ash's first opponent is Nando. Sending out Staraptor against Nando's Roserade, he thinks he has a good advantage. However, Nando is no push over and begins to take the lead. Will Ash be able to defeat Nando, the trainer who fought grandly in the Grand Festival?
Aired 01/07/2010EP 183 - League Unleashed!

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.