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Kathy Kmonicek, Associated Press
New York Knicks' Tyson Chandler (6) shoots over New Jersey Nets' Shelden Williams (33) as Deron Williams, right, and Brook Lopez (11) watch during the first half of an NBA preseason basketball game, Wednesday, Dec. 21, 2011, in New York.

NEW YORK — Carmelo Anthony had 21 points and eight rebounds, and the New York Knicks tuned up for the NBA season opener by beating the New Jersey Nets 88-82 on Wednesday night.

Amare Stoudemire scored 15 points, and Tyson Chandler added eight points and 12 rebounds for the Knicks, who host the Boston Celtics on Sunday afternoon in the first game of the 2011-12 season.

Point guard Toney Douglas finished with 13 points in the first NBA game at Madison Square Garden since renovations began on the arena. He got additional time after his backup, Mike Bibby, sat out the second half with back spasms.

Kris Humphries, who re-signed earlier Wednesday with the Nets, entered in the second quarter for his first action since his failed marriage to reality star Kim Kardashian. The forward was loudly booed every time he touched the ball in his brief stint, a reception that rivaled what LeBron James received in his first visit here last season after choosing Miami over New York.

Chants of "We want Humphries! We want Humphries!" broke out in the fourth quarter, but he did not return.

Deron Williams scored 21 points and Brook Lopez had 15, though 11 came against Knicks reserves in the fourth quarter. New York completed a sweep of the two-game series after winning at New Jersey on Saturday.

Among the changes at the arena after the first of a planned three-year project were new locker rooms and the removal of the tunnel from where players used to enter the court.

Before the game, the Knicks announced they had claimed Steve Novak off waivers after he was cut by San Antonio.