Celtics star Jayson Tatum opens up on making LeBron James his first poster victim since injury

Jayson Tatum turned back the clock against the Philadelphia 76ers on Tuesday night, and the Boston Celtics star admitted that his poster dunk on LeBron James meant more to him than just two points . Midway through the third quarter, Tatum split a double team, drove hard to the rim and threw down a one-handed slam right over James .…