Getty Ex-Celtics Ray Allen (middle), Paul Pierce (left) and Kevin Garnett BOSTON — Ray Allen looked in great shape as he stood at the far end of the Celtics ‘ locker room late Tuesday night. He has always appeared thus. But there was the further removal of an emotional weight evident earlier as he joined Paul Pierce, Kevin Garnett and other franchise legends for the 2024 championship celebration. He was even more at ease, knowing he could expect only affection from the crowd and teammates who