Neverending Dreams
It all comes down to this. Gibson and Goro are finally able to fulfill their promise and dream to each other as they face off in the World Baseball Cup and go into extra innings. Their performances are able to touch the hearts of everyone watching and all support toward one specific team seems to fade as both refuse to let the game end with shutout inning and shutout inning. However a rule is revealed- if the score is still tied after the 18th inning, then the game will be canceled and a rematch held the next day.
Aired 06/06/2009EP 22 - Neverending Dreams

2009
Major S5
After the baseball season was over, Goro returned to Japan. There he learned from Toshi that there is going to be a Baseball World Cup the following year hosted in America.
(Source: AniDB)