There was a war of attrition in TD Garden tonight between the Boston Celtics and the Philadelphia 76ers. Continuing to grapple with the COVID-19 outbreak that has affected much of the league, the two teams each missed a number of key contributors and deployed nine-man rotations, combining to play nine players more than 30 minutes in a physical rivalry showdown. The game remained remarkably tight throughout, with neither team enjoying a double-digit lead at any point, but in the end, the Sixers made just enough plays in the closing minutes to pull out the win.