The Boston Celtics will look to win their fourth game in a row when they battle the Chicago Bulls in a key Eastern Conference matchup on Monday night. Boston is coming off a 146-115 win over the Los Angeles Clippers on Saturday,

With Jayson Tatum sidelined by an Achilles injury, the No. 1 role on the Boston Celtics evidently belongs to Jaylen Brown, and he’s running with the opportunity. The 29-year-old ranks fourth in the Association in points, averaging a career-high 30.1 points per game.

The Bulls were threatening a team-record low points for a half (23, set against Miami on April 10, 1999) before Jevon Carter hit a pair of late 3s. Chicago missed 20 of its first 23 attempts from beyond the arc. Boston wasn’t much better, making only 5 of its first 19.

Jaylen Brown, who is playing the best basketball of his career. Brown is averaging 30.1 points, 6.3 rebounds, and 5.0 assists and is coming off a 50-point explosion against the Clippers. Derrick White continues to be the perfect complement, averaging 18.7 points, 4.3 rebounds, and 5.3 assists while anchoring the perimeter defense.

Head coach Joe Mazzulla was proud that his Celtics found a way to grit out an ugly win over the Bulls on Monday night.

The Celtics, now 23-12, have won four straight and eight of their last nine. They own the East’s best point differential this season and rank top-three in the NBA in offensive rating and net rating, far outpacing their lukewarm preseason expectations.

Anfernee Simons scored all of his 27 points in the second half — including 18 in a row at one point — and Payton Pritchard added 21 for the Celtics, now No. 2 in the East.

The Celtics (22-12) return home Monday night to host the Bulls (17-18) at TD Garden after a strong 4-1 road trip.

The Celtics built a big lead in the first half then never let the Bulls put together a comeback attempt in their win Monday.