Celtics shake-up: goodbye and comeback buzz

Al Horford has officially signed a multi-year deal with the Golden State Warriors, ending his memorable run in Boston with a heartfelt farewell to Celtics fans.

Meanwhile, Jayson Tatum is back on court just four months after Achilles surgery—his progress so stunning even Kevin Durant reacted. If Tatum heals any faster, the NBA might start testing for superglue instead of adrenaline.