Atlanta seemingly has a knack for matching up well against Boston - some teams just have others' number; these 2 teams probably won't end up facing each other in the playoffs so anticipate that they'll let it all hang out so to speak.
Hawks not renown for their high-flying scoring prowess (a la Golden State), but reduce most games they play to a down-in-the-trenches affair - not the most aesthetically pleasing/easy-on-the-eyes outfit in the league. Couple that w/ a defensive-anchored Celtics and it could make for a very turgid contest relative to pace.
I have put a bit of consideration into an under play for this game. There's just so many games to look at today. I'm sticking to one game today so I'm in search of that gem.