MIAMI -- Dirk Nowitzki didn't find anything funny about the Miami Heat's Dwyane Wade and LeBron James coughing and cracking jokes about being sick in front of cameras, calling it "childish."

Wade and James didn't mention Nowitzki's name, but it appeared they were mocking the Dallas Mavericks superstar while walking out of the American Airlines Center following Thursday's shootaround, before Game 5 of the NBA Finals. That's certainly how Nowitzki, who battled a sinus infection that caused a 101-degree fever during Dallas' Game 4 win, perceived the incident when he watched the video.

"I just thought it was a little childish, a little ignorant," Nowitzki said before Saturday's practice at AmericanAirlines Arena. "I've been in this league for 13 years. I've never faked an injury or illness."

Wade, who referred to Nowitzki's sinus infection Thursday as "the fun-loving story of him being sick," claimed Saturday that he didn't pretend to cough.

"I actually did cough," Wade said. "And with the cameras being right there, we made a joke out of it because we knew you guys were going to blow it up. You did exactly what we knew.

"We never said Dirk's name. I think he's not the only one in the world who can get sick or have a cough. We just had fun with the cameras being right in our face about the blowup of the incident, and it held to be true. You blew it up."