The Boston Celtics spotted the Philadelphia 76ers a 22-point lead at one point on Thursday in their game in London before roaring back to prevail 114-103 at the O2 Arena.
Jaylen Price led the way with 21 points and Kyrie Irving dropped in 20 for the Celtics, who were technically the visitors in the battle of Atlantic Division rivals.
Jayson Tatum added in 16 points and Al Horford had a solid 13 points, eight rebounds and seven assists as Boston picked up their seventh straight win.
The Celtics have got the better of an interesting cross section of the NBA, defeating the Charlotte Hornets, Houston Rockets, the Brooklyn Nets twice, the Cleveland Cavaliers and the Minnesota Timberwolves prior to their triumph in London.
The Celtics and the 76ers will meet again on Thursday at the TD Garden in Boston, but the Atlantic Division leaders will first welcome in the New Orleans Pelicans.
The Celtics lead the Toronto Raptors by three games in both the Division and the Eastern Conference and, with the Cavaliers struggling, Boston and Toronto seem the quality duo in the standings.
Boston are 5/2 to win the Eastern Conference title, with the Raptors 4999/1 and the Cavaliers 4/9.
Currently ninth in the Conference standings, the 76ers also play one more game before heading to Boston.
The Raptors are the visitors to the Wells Fargo Center in Philadelphia on Monday for a Sixers side that is a game behind the Indiana Pacers.
Five games cover the Miami Heat in fourth place in the Conference and the New York Knicks who are currently 10th, showing that one good winning streak for any of the seven teams will radically change the situation.
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