But Okongwu found some relief when he knocked down his first 3 of the game with 8:39 remaining in the third. Then answered a 3 from Celtics center Luka Garza 30 seconds later. Okongwu made another, putting the Hawks up 77-68 with 5:35 to play in the quarter.

Through Jayson Tatum's heroics against the 76ers which got him a LeBron James and Michael Jordan record, the Celtics get their first NBA Playoffs win.

The Celtics have a lengthy injury report with three starters listed for their 7:30 p.m. Friday game against the Hawks at TD Garden. Jaylen Brown (left calf tightness), Neemias Queta (right thumb sprain) and Derrick White (right knee contusion) are all questionable for Friday’s game.

The Celtics will be shorthanded when they take on the Hawks at 7:30 p.m. Monday in Atlanta. As expected, Jayson Tatum was downgraded to out for Monday’s game with right Achilles repair management. The C’s blew out the Hornets on Sunday, so they’ll be on the second game of a back-to-back.

A rough offensive start forced the Celtics to adjust quickly against the Hawks’ defense. Behind Payton Pritchard’s explosion and smart tactical tweaks, Boston found answers on both ends.

Jaylen Brown is set to return to the Boston Celtics lineup after sitting out the last two games with left Achilles tendonitis.

Pritchard scored 19 of his game-high 36 points in the the first half of Friday night's win over the Hawks at TD Garden.

The Celtics and Hawks went into halftime Monday night tied at 54. By the start of the fourth, it was a different game. Atlanta led by 14 and never looked back, closing out a 112-102 win at State Farm Arena. The Hawks overwhelmed Boston in the third quarter, shooting 68.4 percent from the field while holding the Celtics to just 25.0 percent.