Oo, Baki the Grappler was a Series that was made in 2001 that had 2 seasons, 24 eps a piece. Season 1 was based on the First manga, following Baki and his conflict with his pops, second season was based on the second manga that focused on the Tournament. The OVA for Baki the Grappler was made 7 years earlier, 1994, by a different animation studio, and only focused on 1 fight from first manga, it was 1 episode 45 min long. There is a 3rd manga being worked on for Baki the Grappler, its still on going and focuses on his fathers past, however there prob wont be another anime season to follow =x