Kristaps Porziņģis, who played alongside Dončić in Dallas for 2 1/2 seasons, sounded as surprised as anyone. Porziņģis said his phone wasn’t working, so he learned about the trade when someone told him about it on the streets of Philadelphia, where the Celtics were in town to meet the Philadelphia 76ers. “He was like, ‘Yo, you heard about the trade?’” Porziņģis said. “I was like, ‘What happened? Did I get traded?’ And he was like, ‘No, Luka to the Lakers.’ And I was like, ‘Yo, no way.’ Then I got my phone back and read all about it. Honestly, I can’t believe it. I think this is the craziest trade in NBA history. Unbelievable.”