Highlights of Sunday's NBA games

The Boston Celtics spotted Washington the first 16 points of the game and then roared to a 123-111 home victory over the Wizards in the first game of the Eastern Conference semi-finals on Sunday.

Top-seeded Boston, winning its fifth straight playoff game after losing the first two games of the first round, both at home to the Chicago Bulls, trailed 22-5 just 5 1/2 minutes into the contest.

But the Celtics caught up in the second quarter, stayed close and then exploded in a 36-point third quarter to lead by 15 after three before holding off a Washington charge.

Game Two in Tuesday night at TD Garden.

Isaiah Thomas, who flew from Chicago to Tacoma, Washington, to attend the funeral of his sister, Chyna, on Saturday before flying back late Saturday night, scored 12 of his 33 points and Jae Crowder 11 of his playoff career-high 24 in the 36-16 third quarter.

Thomas, who gave an emotional speech at the funeral, lost a tooth to an Otto Porter inadvertent elbow in the first half -- the tooth flying up into the air before Thomas, who finished with nine assists, picked it up off the floor.

Bradley Beal led the Wizards with 27 points.

The Wizards scored the first nine points of the fourth quarter but the game then belonged to Al Horford, who scored 10 of his 21 points in a 3:25 span to ensure the win.

Washington's Markieff Morris suffered a left ankle sprain after being fouled by Horford in the second quarter. He stayed in the game after a long delay, left with 7:16 remaining in the second quarter and didn't return.

The 16-0 start was the biggest in the playoffs dating back to at least 2002-03, according to STATS Inc., as the Wizards grabbed the first 12 rebounds and Boston opened 0-for-8 from the floor. (Editing by Andrew Both)