Philadelphia 76ers have had a horror start to the NBA playoffs, with Ben Simmons going to war with his own fans, centre Joel Embiid caught looking at text messages during the game and the Brooklyn Nets running away with the victory.

The Nets, not given much of a chance of winning game one of the best-of-seven series, took an early, commanding lead and won 111-102.

The fans inside Philadelphia's Wells Fargo Center were expected to lift the 76ers to the win but boos started raining down on Simmons and his teammates early in the second-quarter when they trailed 37-24.

Philly fans are among the fiercest in any sport but Simmons risked further antagonising them with his post-game comments.