Nate Robinson, C.J. Watson fight

CHICAGO -- Brooklyn Nets guard C.J. Watson and Chicago Bulls guard Nate Robinson each received a technical foul in the second quarter of Game 4 of the Eastern Conference quarterfinals after getting tangled up and tackling each other into the scorer's table.

Officials reviewed the play and determined that no punches had been thrown and both players remained in the game.

The bad blood between the pair has been brewing throughout the series. It's unclear when the initial rivalry began but the two guards have been going after each other throughout the series.

"We're just competitors," Robinson said after Game 2. "I don't like him. He don't like me. That's how it's going to be. There's animosity between the two of us, and for us, that's good."

Both players seemed to be enjoying the back-and-forth throughout the series.

"When you don't like somebody and you're playing against somebody, you want to destroy the other person," Robinson said. "You want to shut that person down. You want to do good, so for me, it's just a lot of confidence.

"He makes it competitive, and that's how it should be. That's how the game should be played. When you play against guys on other teams, you shouldn't like them."

Watson was trying to take Robinson's actions in stride heading into Game 3.

"I mean, he can say whatever he wants to say," Watson told ESPNNewYork.com. "I'm just trying to win at the end of the day, so that's what it is.

"I mean, obviously, you know we don't like each other. I mean, I really don't talk to him off the court. It is what it is."

Watson was waived by the Bulls last summer after the team decided not to pick up his option. Robinson was signed to a deal a month later and has thrived as a backup guard in Tom Thibodeau's system.

"This series isn't about me or Nate," Watson said earlier in the week. "It's about trying to go out there and win. If it was anyone else that I was mostly going up against -- if I was mostly playing against Kirk Hinrich -- I mean it'd probably be the same against him. So it's not just me against Nate. It's about being competitive and trying to go out there and win and not backing down and not trying to lose."

Robinson was initially called for a personal foul before the fracas began and appeared to get cut on the face. After play resumed, he picked up another personal foul a few moments later and went to the locker room to be checked out by the trainer.