No one knows the pain of losing to LeBron James in the playoffs quite like Al Horford.



Well, except for maybe Dwane Casey.



Horford’s last two seasons with the Atlanta Hawks ended the same way: playoff sweeps at the hands of LeBron and the Cavs. Once in the Eastern finals, in 2015, and the following year in the conference semis.



So Horford signs with the Celtics as a free agent in 2016, and guess what? A gentleman’s sweep out of the 2017 conference finals and then a Game 7 loss last year. To LeBron.



Casey is coaching the Detroit Pistons now instead of the Toronto Raptors. Guess why?



Casey’s Raptors locked up with the Cavs in the 2016 Eastern finals. After splitting the first four games, LeBron’s team dismissed Toronto in Games 5 and 6 and went on to win the Finals over the Warriors. The next year, in the conference semis, the Cavs swept Casey’s Raptors. And last season, after finishing No. 1 in the East...