The AP reports: Isiah Thomas was booed during pregame introductions and fans chanted for him to be fired in the final minute. But while firing Thomas may be the popular decision with fans, Jamal Crawford cautioned that it may not be the right one… Doc Rivers gave Kevin Garnett, Paul Pierce and Ray Allen the night off, but Rajon Rondo had 23 points and 10 rebounds for the Celtics, who learned during the game they will face the Atlanta Hawks in the first round of the playoffs. Sam Cassell added 22 points for the Celtics, who got a halftime pep talk from another champion who wears green: Masters winner Trevor Immelman, who watched the game the day after collecting the green jacket.. Nate Robinson scored 26 points and David Lee had 12 points and 16 rebounds for the Knicks. Rookie Wilson Chandler, who had been playing well lately, sprained his left knee in the third quarter. X-rays were negative.