BOSTON - Joel Embiid scored 17 of his 41 points in the fourth quarter, hitting three jumpers in the final minutes and three free throws in the last four seconds to ice it as the Philadelphia 76ers beat the Boston Celtics 108-103 on Monday night.With both teams fighting COVID-19 outbreaks, Embiid also had 10 rebounds and a steal on the Celtics’ last-chance inbound pass while playing 40 minutes, 14 seconds — a season high for a game that didn’t go to overtime.Seth Curry scored 26 points and Tobias Harris had 25 for Philadelphia.Jaylen Brown scored 30 points, Jayson Tatum had 17 and Enes Kanter Freedom had 15 points and 11 rebounds for the Celtics, who had seven players in COVID-19 protocol, with Robert Williams III a late scratch for personal.