For much of the first half Tuesday night, it didn't look like the Boston Celtics would be eliminating the Orlando Magic and advancing in the NBA Playoffs. The Magic's suffocating defense stymied Boston's offensive attack,

Boston Celtics' Jayson Tatum, left, drives past Orlando Magic's Anthony Black during the first half in game 1 of a first-round NBA playoff basketball series Sunday, April 20, 2025, in Boston. (AP Photo/Michael Dwyer) AP

The Boston Celtics pride themselves on a great development program. They can claim all of that because of how insane Jaylen Brown and Jayson Tatum became as the duo led them to the Larry O'Brien trophy in 2024. But the latter still has so much growth in him, and Al Horford knows that.