Super-teams such as the Golden State Warriors are not good for the NBA, according to commissioner Adam Silver.
The Warriors added 2014 MVP and four-time scoring champion Kevin Durant to a core that features two-time MVP Stephen Curry and All-Stars Draymond Green and Klay Thompson in free agency.
Durant's arrival makes Golden State - who won an NBA-record 73 games last season - clear favourites for a third consecutive Finals match-up with LeBron James and the Cleveland Cavaliers, who had the the highest payroll in the league last year.
"I've read several stories suggesting that that's something that the league wants, this notion of two super-teams, that it's a huge television attraction," Silver said in a media conference.
"I don't think it's good for the league, just to be really clear. I will say whoever is the prohibitive favourite, try telling that to the 430 other players who aren't on those two teams."
On a possible solution to the issue of franchises putting together super-teams, Silver added: "Part of it is designing a collective bargaining agreement that encourages the distribution of great players throughout the league.
"I absolutely respect a player's right to become a free agent, and in this case for Kevin Durant to make a decision that he feels is best for him, and I have no idea what is in his mind or heart in terms of how he went about making that decision.
"In a way the good news is that we are in a collective bargaining cycle, so it gives everybody an opportunity, owners and the union, to sit down behind closed doors and take a fresh look at the system and see if there is a better way that we can do it."