The Oklahoma City Thunder will come to Boston on Nov. 23, led by stars Kevin Durant and Russell Westbrook. Former Celtics center Kendrick Perkins also return to face the team he played seven seasons with. The last time Perkins came to face the Celtics after being traded to the Thunder in 2011, emotions ran high. "But you have to remember that it's a basketball game," said Perkins. "You had friendships with these guys so it's hard." The Thunder lost to the Heat in the NBA Finals, 4-1.