@JoePompliano
Inter Miami has added 11 million Instagram followers since Lionel Messi joined the team.They now have more followers than every NFL, MLB, and NHL team — and Inter Miami has more followers than the other 28 MLS teams combined.That’s the Messi effect (Chart via 
@LevAkabas)
Inter Miami is now the 4th most followed sports team in the United States.
• Warriors (NBA): 31 million
• Lakers (NBA): 23 million
• Cavaliers (NBA): 16 million
• Inter Miami (MLS): 12 million
For an MLS team that had 1 million IG followers a month ago, that’s absurd.
		
 
		 
		
	 
The key, for me, is neither the 11 million now nor the 1 million before Messi.   How many stick around post Messi will determine whether he had an effect or not (and I obviously don't mean Instagram specifically).
Pele and Becks before Messi had massive effects on the sport in the US over the long term.   Messi will not have the ability to move the needle that much obviously since the sport in the US is significantly stronger than when either Pele or Becks entered the league but he does need to have some long term effect, even if we don't see it on the surface.
edit:  It is quite linear when you break it down
Pele helped the US get WC1994
WC 1994 helped the US create MLS
MLS helped the US land Becks
Becks helped the US land Messi
What Messi helps may not be known for a long time.