No big deal.  Celtics had a few nice opportunities to tie up or take the lead, the shots just didn't drop. They were all good shots, though - Tatum's corner 3, Smart's iso floater, and Brown's 3.  
This was also the third game in four nights at the beginning of a season with a short layoff. 
Detroit's better than their record suggests, too.  They play hard, defend, and have two MIP candidates in Grant and Jackson.
All good. On to the next one.