As the Celtics opened training camp this week, Al Horford officially began his tenure with the Golden State Warriors.

The veteran big man and locker room leader chose to leave Boston this offseason to join the likes of Stephen Curry, Draymond Green and Jimmy Butler in the Bay Area. On Wednesday, he explained why.

“It was very difficult,” Horford told reporters in San Francisco. “Boston became a second home for me, and just being in that community and being part of that city was something very special for me and my family. So it wasn’t an easy decision for me to make.”

Horford spent seven highly successful seasons in Boston over two stints with the franchise. His Celtics teams reached five Eastern Conference finals and two NBA Finals, and won it all in 2024. Regarded as one of the best f

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