Dikembe Mutombo loved Serge Ibaka doing the finger wag after block (VIDEO)

Dikembe Mutombo’s finger wag is a part of NBA lore now. You aren’t allowed to do it just willy-nilly.

But when Serge Ibaka did it on Tuesday night, it was OK. Mutombo -- sitting courtside at the matchup between the Phoenix Suns and Toronto Raptors -- seemed to enjoy it after Ibaka blocked Phoenix’s Alex Len.

Let’s cut to the tape, shall we?

Via Twitter:

Serge Ibaka blocks Len and breaks out the finger wag with Dikembe Mutombo in attendance!

☝☝☝ pic.twitter.com/latHxAMM6b

— Def Pen Hoops (@DefPenHoops) December 6, 2017

This isn’t the first time Ibaka has done Mutombo’s finger wag, which the elder NBA statesman has jokingly said in the past was OK for Ibaka to use if he paid him royalties.

Toronto beat the Suns, 126-113, and the Suns might be without Devin Booker for a little while.