In the 1970-71 season , the Bucks won the championship three years after landing in the NBA . They became the team that took the shortest time to win the championship after joining the NBA. At that time, the team’s leader was the two great stars in NBA history, Karim Abdu. Le-Jabbar and Oscar Robertson . In 2014, the then owner of the Bucks, U.S. Senator Herb Cole of Wisconsin, formally reached an agreement with billionaires Westerly Aidens and Mark Lasley to transfer the team for $550 million. Buy quality-assured Milwaukee Bucks sports face coverings at NBA Team Logo Face Coverings Store.