The NBA began its preseason in Turkey on Saturday with the Thunder playing a Turkish team and there will be seven more exhibition games played over the next six days in Spain England Manila Taipei Beijing Shanghai and Rio de Janeiro.

But perhaps the most intriguing NBA story happening overseas is being played out off the court in Germany where Kobe Bryant is having a second round of “Orthokine’’ treatment in the last two years on his ailing right knee.

Still recovering from his torn Achilles last April Bryant has yet to be cleared to run or jump by the Lakers. His return date to the team for game action is unknown. The team said he went to Germany for treatment unrelated to the Achilles injury. Interestingly he didn’t tell Mike D’Antoni that he was leaving choosing to notify the team’s long-time trainer Gary Vitti instead.

“Kobe not telling Mike D’Antoni tells you something about what Kobe thinks of coaches and also Mike’s status’’ said one NBA head coach. “Now if that were Phil Jackson I would think Kobe would have told him he was going.’’

Beyond Bryant showing D’Antoni a lack of respect there has to be major concern among the Lakers about their aging superstar’s sore knee. He raved about the Orthokine treatment in 2011 saying it made him “a lot stronger’’ and he was able to regain some quickness and explosion going to the basket. But he was 33 at the time and now he’s two years older.

Other athletes who have had the procedure in which blood is taken from the problem area and spun in a centrifuge to create a serum that is then injected back into the problem area and is said to help to prevent the degeneration of cartilage include Alex Rodriguez and golfers Vijay Singh and Fred Couples.