Kristaps Porzingis ready to give Celtics 'high-level years'

BOSTON -- When Kristaps Porzingis finally fell asleep around 4 a.m. last Thursday morning, he still wasn't sure whether a trade to the Boston Celtics was going to take place.

The initial three-team deal Porzingis had believed would bring him to Boston involving the LA Clippers had fallen through. And, eventually, he decided he simply had to go to bed and leave his fate for the morning.

"It was a crazy day for me," Porzingis, seated between Celtics coach Joe Mazzulla and president of basketball operations Brad Stevens on a stage on the Auerbach Center practice court Thursday afternoon, said with a broad smile. "I was about to go to sleep, and then I heard the news that the trade didn't go…