When LeBron James calls time on his career, he will go down as arguably the greatest player in NBA history.

Individually and collectively, the King has achieved almost everything in the game and continues to etch his name further into the record books with every season.

At 32, he’s won three titles, had 13 All-Star appearances, been named MVP on four separate occasions and finals MVP three times. He was the rookie of the year in 2004. Scoring champion in 2008. And he's a two-time Olympic gold medallist.

In the Cleveland Cavaliers' shock 112-107 loss to the Brooklyn Nets last night, he set a franchise record for appearances with 772, overtaking Lithuanian Zydrunas Ilgauskas.

Every year, James sets his sights firmly on winning a championship and has been to seven straight finals.

But he has revealed an interesting personal goal he's keen to accomplish before he retires as it's the only thing he's failed to achieve in his career thus far.

“I want to shoot 80 [percent] from the free throw line, man,” James told ESPN’s Dave McMenamin. “That’s my only goal. That's my last goal of my NBA career. That’s my one. I’ve done everything else.”

It may not come across as a huge target, but it's an area of LeBron's game that is considered a 'weakness'.

His best free throw percentage came almost a decade ago, during his first stint in Cleveland, when he shot 78.0 percent in 2008-09.

In the regular season last year, he shot a career-low 67.4 percent and was often criticised for his failings from the foul-line.

The only time the superstar has shot 80 percent from the charity stripe was in the playoffs in his final year with the Miami Heat.

But LBJ is confident that he will improve his free-throw shooting this year as he revealed a change to his shooting motion during the offseason.

In his opening five games, King James is shooting 76 percent at the line and could be in line to reach his desired mark if he continues at this rate.

Annoyingly for the small forward, he hit 4-of-8 free throws in the loss to the Nets and missed some crucial freebies down the stretch which could hurt his confidence.

But as the best player on the planet, he's able to achieve anything he sets his mind to so it'll come as no surprise if he succeeds in hitting his goal.