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Greatest Playoff Upsets
9 of 11
No. 2
Sonics defeat Mavs
1987 (first round)
Despite a losing regular-season record (39-43), the seventh-seeded Sonics knocked off the No. 2 Mavs (55-27) three games to one, including an incredible 151-point performance in Game 1. The Sonics were led by Xavier McDaniel and Tom Chambers while the Mavs struggled to make up for the lackluster play of Mark Aguirre, who was suffering from strep throat. The Sonics made it past Houston in the semifinals before being swept by the eventual champion Lakers.
Text: Andy Gray/SI
Photo: Mike Powell/Getty Images