Complex sentence: Regan was drafted by the Buffalo Sabres in the 7th round, 84th overall, in the 1970 NHL Entry Draft and played three years in the Sabres organization, primarily in the American Hockey league.
Split into simpler sentences: Regan was drafted by the Buffalo Sabres in the 7th round, 84th overall, in the 1970 NHL Entry Draft. He played three years in the Sabres organization, primarily in the American Hockey league.