Raptors center Bismack Biyombo has been spotted doing the finger wag as Toronto climbed back to even their series against the Cavaliers.
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However, he didn't get permission from the originator of the finger wag, Dikembe Mutombo.
But the retired 7-footer who is the NBA's No. 2 all-time shot blocker says Biyombo doesn't need it.
"You can copy something you like," Mutombo told ESPN.com on Tuesday. "Bismack is my youngest brother. I have nothing to be mad at him for. I'm so proud of him. We're from the same country (the Democratic Republic of Congo), and I call and text him every day to congratulate him, because I'm so proud of him."
Biyombo said he received permission from Mutombo to use the finger wag, but the four-time NBA defensive player of the year said he doesn't remember that conversation.
"I don't know when that conversation took place," Mutombo told TMZ. "Him and I need to talk this summer.
"He claims in the newspaper and everywhere he said I gave (permission) to him," Mutombo said. "I said, 'Did I? Was it family? Was it a cosign?' But you know what, he's a young man, (so) I let him enjoy the fame. He's making me famous. I will see him in the Congo this summer, so him and I will talk back home with nobody around us."
Mutombo blocked 3,289 shots during his 18-year career that included 18 All-Star appearances. In his fifth season, Biyombo has a long way to catch Mutombo — the 23-year-old has 576 blocks — but it should be noted that Mutombo didn't block his first shot in the league until he was 25.
Biyombo said he wanted to continue the finger wag to honor their country and Mutombo's NBA and shot-blocking legacy.
"After I had a conversation with Mutombo, I just felt like he has been great to my country. ... And I thought it was a better way to keep his legacy going," Biyombo said during the the Eastern Conference finals.
"I love Mutombo like a big brother. I've had several conversations with him and Hakeem Olajuwon. But it's also getting caught in the moment and finding a way to get the fans involved and my teammates, as well, and flowing with the energy of the game."