LOS ANGELES, United States (AFP) — James Harden has ended his training camp holdout but that hasn’t put a lid on the controversy surrounding the disgruntled Houston Rockets star.

The 31-year-old American appears likely to begin the season with the Rockets despite a trade demand from the team he has spent the last eight years with.

Harden showed up late for the Rockets training camp and must have six straight negative COVID-19 tests before the league will clear him to practise or play with the team.

He was not in the line-up when the Rockets opened the preseason with a 125-104 win over the Chicago Bulls on Friday.

It was one of five contests to begin the preseason following the shortest off season in NBA history. Just two months have passed since the Los Angeles Lakers won their 17th NBA title by beating the Miami Heat in six games.

Harden has reportedly requested to be traded to a contender. Philadelphia, Brooklyn, Miami and Milwaukee are among the teams that he could end up with if the Rockets grant his wish.

His future with the Rockets became murky with Head Coach Mike D’Antoni stepping down at the end of last season.

Then the new Rockets General Manager Rafael Stone and Head Coach Stephen Silas dealt Harden’s teammate Russell Westbrook to the Washington Wizards for John Wall. They also signed free agents Christian Wood and DeMarcus Cousins.

Silas, however, is holding out hope that Harden will remain with the team.

“I’m confident that he’ll be all in,” Silas said immediately following the Westbrook trade.

“That’s where I’m leaving it. As I’ve said, I’m giving him the space to do his thing but I’m confident he’ll be here when we get started.”

Harden has led the NBA in scoring each of the past three seasons.

Last season he averaged 34.3 points per game, but he also reinforced his reputation as a play off underachiever as his one-season partnership with Westbrook didn’t pay off with postseason success.

The Rockets were blasted out of the play-offs in the second round when they lost in five games to the Lakers.

Harden hasn’t spoken publicly since the reports but others have.

Former NBA player Stephen Jackson called out Harden recently, saying he doesn’t want to be held responsible for the Rockets’ wins or losses.

“It’s just simple, James Harden doesn’t want to be held accountable,” Jackson said on social media.

“D’Antoni is the worst defensive coach in NBA history… James is trying to continue to be close to D’Antoni so he can’t be held accountable.”

In other opening night exhibition games Friday, the New York Knicks beat the Detroit Pistons 90-84 and Orlando Magic downed the Atlanta Hawks 116-112.