Daryl Morey believes LeBron James is the best player in the history of the NBA "by a bit of a big margin."

"You look at his ability to generate wins and championship probability over time, and you basically break that down. You don't need all the numbers. You can watch as well and see that.

"But if you basically isolate that and also look at the career he's had, frankly I think at this point it's become a bit of a big margin, actually, where he's come out ahead. I know that's a little controversial."

James has won three titles and four MVPs to six titles and five MVPs by Michael Jordan.

The Houston Rockets had interest in signing James but he instead signed with the Los Angeles Lakers.