Cleveland Cavaliers forward LeBron James has claimed that he is unsure whether he will make himself available for next summer's Olympics in Rio.

James has taken part in Team USA's summer camp this week and it has been confirmed that he is guaranteed a spot on the roster, but the four-time NBA MVP has revealed that his health at the end of the season will be a major factor in his decision.

The 30-year-old was hampered by injury issues last season before a winter break helped him lead the Cavaliers to a spot in the NBA Finals.

"All my decisions go through my family. We'll see how my family feels about it, and then with my health, going another NBA campaign season, as far as my team back home in Cleveland, and I'll go from there," he told reporters.

James was a member of the squad that settled for bronze in Athens, but he has claimed gold medals in each of the last two Olympics.