Former Milwaukee Bucks coach Don Nelson, who left the NBA franchise in a dispute with owner Herb Kohl, was introduced as the newest owner and executive vice president of the Golden State Warriors.

Team president Jim Fitzgerald told a news conference in Oakland that Nelson, his longtime friend, had purchased a 10 percent interest in the team for an undisclosed amount of money.

"I was very surprised to see him {Nelson} available," said Fitzgerald, who, as president of the Bucks hired Nelson to replace Coach Larry Costello in 1976. "It's not very often you get a chance at a man of his caliber." . . .

The Bucks will play the Soviet Union's national team and European champion Tracer Milan of Italy in a preseason October tournament in Milwaukee, the NBA announced.

The inaugural McDonald's Basketball Open is an undertaking between the NBA and the International Basketball Federation, the sport's international governing body. WTBS and ABC are scheduled to televise the three-day, round-robin event.

Tracer Milan, winner of three straight Italian League championships, is led by former NBA star Bob McAdoo and Kenny Barlow, a 1986 first-round draft choice out of Notre Dame by the Los Angeles Lakers. The Soviet team features 7-foot-2 center Arvidas Sabonis.