Nets lose OT crusher to Celtics as rookie’s mistake opens door for Jayson Tatum buzzer-beater
BOSTON — What should've been a dream night for Mikel Brown Jr. ended up a nightmare. And the rookie went from hero to goat in a couple of plays. After Brown's huge last-second fourth-quarter shot forced overtime, his inexperienced mistakes on each end of the court cost the Nets in a 125-124 loss to Boston before a sellout crowd of 19,156 at TD Garden on Tuesday night. Brown's 13-point fourth quarter and game-tying 3-pointer had forced overtime. But his ill-advised failed layup attempt with 2.3 seconds left in the extra stanza gave the Celtics one last chance, and his gaffe in getting screened off and switching — after the Nets had been told not to — let Jayson Tatum cash in on that chance. Mikel Brown Jr. (0) of the Brooklyn Nets drives to the basket against the Boston Celtics during a game at TD Garden in Boston, Tuesday, Oct. 27, 2026. NBAE via Getty Images Tatum's 17-footer beat the…