That’s the view of ESPN pundit Brian Windhorst who has suggested there is a huge link between the pair.
James could be a free agent at the end of this season should he decline a contract offer from the Cleveland Cavaliers.
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San Antonio Spurs star Leonard could also be available with rumours of a disagreement between player and team.
Should both be available, there is bound to be a rush to get the pair signed up.
And Windhorst has suggested that they may even be at the same NBA side come next season.
“What happens to Kawhi Leonard is a link to what happens to LeBron,” Windhorst told SportsNation.
“Where Kawhi ends up this season will have a direct impact on where LeBron ends up. Even if they don’t play together, they are going to be linked in where their futures are gonna be.
“If the Cavs get knocked out before the Finals, and LeBron has six weeks to think about things and six weeks to get in touch with Kawhi, things could get a little crazy.”
James lost the opening match of a first-round playoff this season for the first time with Pacers beating the Cavs on Sunday.
They next face off on Wednesday while Leonard’s Spurs face Golden State Warriors tonight.
The Warriors won the first match with the Spurs having last won the NBA Championship in 2014.