Here's how the blockbuster trade between the Lakers and Mavericks affects the Celtics. Read more on Boston.com.

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.

The Los Angeles Lakers have made a stunning move by acquiring Luka Doncic in a blockbuster trade with the Dallas Mavericks, sending Anthony Davis and others in exchange. To address defensive concerns,