Denver Nuggets Coach Paul Westhead's run-and gun style that he used at Loyola Marymount backfired as the Phoenix Suns routed the Nuggets 186-123 in the NBA preseason opener for both teams Thursday night.

Phoenix rookie forward Cedric Ceballos, who made all 12 of his field-goal attempts, scored 29 points and Eddie Johnson added 27 for the Suns. Ceballos, a second-round draft pick out of Fullerton State, scored 18 points in the fourth quarter.It was the most points the Suns have ever scored in any game in their 23-year history. Their regular-season team record is 160, set against Portland on March 21, 1972. Denver committed 48 personal fouls and Phoenix made 52 of 71 free-throw attempts.

And in Barcelona, Spain, Patrick Ewing scored 34 points as the New York Knicks defeated Italian champion Scavolini Pesaro 119-115 in overtime in the four-team McDonald's Open, barely keeping alive the NBA's perfect record in international competition.In other news, the NBA has announced plans for a true world championship tournament.

The tournament, which could begin as early as 1993 and would be held during the NBA preseason, eventually could include up to 16 teams that have won national titles in Europe, South America and Australia, along with the NBA champion.

The announcement was made Thursday by NBA commissioner David Stern and Boris Stankovic, head of FIBA, the international basketball association. The tournament would be a successor to the current four-nation McDonald's Open.

"I think in 1993 you will see the beginning of expansion of the McDonald's Open to where it would develop into the world championship of clubs," Stern said.

"We are still discussing the date, but we will try to do everything possible to start that year," Stankovic said.