Michael Jordan's longetime trainer said that even at 50 years old, Jordan would be the best player on the Bobcats, the team he currently owns. (Kent Smith/Getty Images)

Michael Jordan

Michael Jordan's upcoming 50th birthday has brought the basketball legend back into the spotlight and even fueled speculation that he could attempt a comeback.

If Jordan chooses to go that route, longtime trainer Tim Grover is prepared to help. Grover has done extensive research to put together a program for Jordan to follow should he attempt a return to the NBA, according to Yahoo! Sports' Adrian Wojnarowski, and believes that Jordan "is still the best player on the Charlotte Bobcats."

The soon-to-be 50-year-old beat 19-year-old No. 2 draft pick Michael Kidd-Gilchrist in a game of one-on-one last month, according to CSNHouston.com's Dave Zangaro.

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Jordan's duties as owner of the Bobcats are the main obstacles preventing him from planning a comeback, Grover told Yahoo! Sports. But Grover also said that if he ever gets the call, he will "be ready for him."

Fifty pages inside a binder sit on Grover's desk inside his suburban Chicago home now, information and studies and research and innovations into regenerating the muscle fibers and anti-aging advances and nutrition. From his trips to Europe and Asia and the Far East, Grover has incorporated a small library of intelligence – backed with the most intimate knowledge of Jordan's body and mind and drive – to create a program that awaits the comeback of all comebacks at 50 years old.

In his last comeback attempt at 38-40-years-old, Jordan averaged more than 20 points per game over two seasons with the Washington Wizards. Grover believes that the Hall of Famer could pull off a similar feat a decade later.

"His skill level was so superior to everyone else, his understanding of the commitment to the task so different, I absolutely believe [Jordan] playing again at 50 is obtainable," Grover said. "Of course, things have been diminished away from the game so long, but even with what's diminished by age, by not playing, I still think he's superior to a lot of the players out there now."

Wright Thompson's ESPN.com feature