LeBron James has been experimenting with the Cleveland Cavaliers in NBA 2K18 to prepare for Isaiah Thomas' debut after his return from injury.Isaiah Thomas hasn't played for the Cleveland Cavaliers yet, but reports say he should be returning from injury this month to make his debut. LeBron James is having an excellent season, but he has also been doing preparations off the court to prepare for Thomas' addition to the team.He has apparently been using the video game NBA 2K18 to play around with lineups, to see how Thomas will slot into the team.