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PHILADELPHIA (CBS/AP) — The Philadelphia 76ers are in a race to land a superstar and there are two big names out there after LeBron James declined his contract option with the Cleveland Cavaliers to become a free agent.

The Sixers are targeting James, but Kawhi Leonard of the San Antonio Spurs is also a possibility – and there’s a chance the Sixers could get both.

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Leonard is an All-Star and a two-time Defensive Player of the Year, but he’s not happy with his current team and has requested a trade. The Sixers are reportedly in talks with the Spurs.

James told the Cavaliers Friday that he is not exercising his $35.6 million contract option for next season and will become an unrestricted free agent.

The decision to decline the option for 2018-19 was expected by James because it gives him more options, which includes him re-signing with the Cavs, who can offer him the most money — a five-year, $209 million contract. James can also sign a short-term deal with Cleveland, something he has done each year since returning in 2014.

James had until 11:59 p.m. to express his intentions to the Cavs and his agent Rich Paul informed the team in the morning, said the people who spoke on condition of anonymity to the AP because the sides are not publicly commenting on moves ahead of free agency opening Sunday.

The three-time champion is now the most coveted prize in an NBA free-agent class that includes All-Stars Paul George and Chris Paul. Teams can begin negotiations with free agents at 12:01 a.m. Sunday.

The fact that he didn’t pick up his option could be good news for worried Cavs fans, who fear James may leave them for the second time in his career. If he had opted in, it would have likely meant the Cavs had worked out a trade for James.

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And while the Cavs remain hopeful he’ll stay, there are other teams in the mix for the 33-year-old — including the Los Angeles Lakers and Houston Rockets.

James will factor family — he has three children, and his oldest son is a rising hoops star — into the choice of where he plays next.

James just completed his 15th NBA season, and it may have been his best yet.

He played all 82 regular-season games for the first time, averaging 27.5 points, 8.6 rebounds and a career-high 9.1 assists per game. He showed no signs of slowing down, if anything he had found a new gear.

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James then carried the Cavs, with their flawed roster after a massive trading deadline turnover, through the Eastern Conference playoffs — they survived two Game 7s and swept the top-seeded Toronto Raptors — to the NBA Finals for a fourth straight meeting with the Golden State Warriors.

It was James’ eighth consecutive Finals appearance, a remarkable feat not matched since Hall of Famer Bill Russell and a handful of Celtics did it in the 1960s. Cleveland was overmatched but James had the Cavs in position to steal Game 1 before a late-game missed free throw by George Hill and mental meltdown by Cavs forward J.R. Smith, who dribbled out the final seconds of regulation thinking his team was leading, led to an overtime loss.

With MVP Kevin Durant heading the charge, the Warriors completed a sweep of the Cavs and James, who revealed following the series that he had broken his right hand in a fit of frustration following Game 1.

James had numerous reasons to be upset. He had done everything possible, and as he left Quicken Loans Arena following Game 4 along with his sons, there was an air of uncertainty heading into this summer.

Those unknowns remain, but James is closer to solving them.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)