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The Oklahoma City Thunder booked their place in the National Basketball Association (NBA) finals with a series-clinching 107-99 win over the top-seeded San Antonio Spurs on Wednesday.

The Thunder, still riding momentum after halting the Spurs' 20-game winning streak last week, registered their fourth consecutive win to clinch the best-of-seven Western Conference championship 4-2 on their home court.

Oklahoma City will play the winner of the Eastern Conference final between the Boston Celtics and Miami Heat in the best-of-seven NBA championship series.

(Reporting by Larry Fine in New York; Editing by Frank Pingue)