The Chicago Bulls lost Michael Jordan for a year and a half because he went and played baseball in the Chicago White Sox organization.
The Chicago Bulls were so dominant in the 1990s. They were so good that they won six titles in eight years as is well known by the sports world. It was one of the most dominant stretches in the history of team sports that saw them have two three-peats. Well, in between those two three-peats, the Chicago White Sox had the honor of having Michael Jordan play in their organization.
He retired from the National Basketball Association after the first three-peat. It was just following the passing of his father. He claimed at the time that he had just had enough and needed to retire. The plan at the time was for him to not come back. Well, it was baseball time for Michael as he moved on.