James Harden could not understand why he was ejected from Game 3 between the Philadelphia 76ers and the Brooklyn Nets, although he was not the only individual frustrated with the officiating on Thursday.

A hot-tempered affair saw a player from each side ejected and the Nets claiming Joel Embiid should have joined them.

Embiid and Nic Claxton clashed after the MVP frontrunner was fouled in the first quarter. As Claxton stared Embiid down, the Sixers big man appeared to aim a kick at his opponent.

While Embiid was issued a flagrant foul one, Claxton was hit with a technical and would later be ejected for a second technical, again for confronting Embiid.

Embiid later described himself as "too valuable" to allow that situation to escalate, but team-mate Harden was thrown out of the game in a separate incident.

He caught Nets forward Royce O'Neale while in possession late in the third quarter, and referee Tony Brothers explained after the game: "Based on the point of contact directly to the groin, it rose to the level of excessive and ejection."

Harden disagreed, not even believing the incident was worthy of a foul.

"Unacceptable, unacceptable flagrant two," Harden said. "First time I've been ejected.

"I'm not labelled as a dirty player, and I didn't hit him in a private area. Somebody is draped on you like that defensively, that's a natural basketball reaction. I didn't hit him hard enough for him to fall down like that.

"For a flagrant two, it's unacceptable. This is a playoff game. We've seen around the league, things are much worse than that play was.

"Honestly, I didn't think it was a foul on me. But that's unacceptable. It can't happen."

By contrast, Brothers said Embiid's foul was "unnecessary" but "didn't rise to the level of excessive" as contact was made with Claxton's leg.

Nets coach Jacque Vaughn responded: "I don't think I've ever seen that in my career before.

"For a guy to intentionally kick someone in an area that none of us want to be kicked at or towards, for him to continue to play...

"I've never seen that before in a game and a guy continues to play. Intentional."

Despite Harden playing only 29 minutes and Embiid scoring just 14 points, the 76ers won 102-97 to take a 3-0 series lead.