For the game, they could be without their best player, as Jayson Tatum is on the injury report. The All-Star forward is averaging 27.8 points, 9.3 rebounds, 5.3 assists and 1.3 steals per contest while shooting 46.

Joe Mazzulla clapped on the sidelines as his Boston Celtics stars Jayson Tatum and Jaylen Brown scuffled against the Atlanta Hawks. Mazzulla refused to step in as Tatum got tangled with Onyeka Okongwu.

Jayson Tatum got into a brief tussle with Onyeka Okongwu. Here's what he and a visibly excited Joe Mazzulla had to say about it.

Dyson Daniels hit a short jumper in the lane with just over a minute left in overtime and Onyeka Okongwu made two free throws with 11 seconds left, lifting the Atlanta Hawks to a 119-115 victory over the Boston Celtics.

The defending NBA Champions are on the second half of a back-to-back on Saturday, Jan. 18 when the Atlanta Hawks visit the Boston Celtics at TD Garden in Boston.

Scattershot shooting and poor late-game execution doomed the shorthanded Celtics in an overtime loss to the Hawks.

Jrue Holiday made a pair of crucial mistakes at the end of regulation in the Celtics' loss to the Hawks, and he took accountability for them.

The Boston Celtics have been trending in the right direction in terms of health in recent games, but for the second half of their back-to-back at TD Garden against the Atlanta Hawks, the Celtics took the floor without two of their best bigs in Kristaps Porzingis and Al Horford, both taking the night off to rest.

Saturday’s loss to the Atlanta Hawks might’ve been the worst of the season for the Boston Celtics. What’s really sad is that I could’ve used that line two other times in the last eight days. It was pretty tough to imagine that they’d be able to top the lifeless effort that they showed up at Scotiabank Arena in Toronto on Wednesday,

Joe Mazzulla defends Jayson Tatum following his tussle with Onyeka Okongwu during the Celtics overtime defeat to the Hawks.

BOSTON (AP) — Dyson Daniels hit a short jumper in the lane with just over a minute left in overtime and Onyeka Okongwu made two free throws with 11 seconds left, lifting the Atlanta Hawks to a 119-115 victory over the Boston Celtics on Saturday night.