Unless Amar’e Stoudemire and Carmelo Anthony join the same overseas squad to develop much-needed chemistry, it’s a bad idea for either of the Knicks superstars to be talking about playing abroad.

Stoudemire still has a bad back and isn’t doing anything physical – or even traveling – until Aug. 15. Anthony still has a bad elbow (bursitis) that he was rehabbing entering the July 1 NBA lockout. Anthony wasn’t even allowed to shoot, The Post reported.

The two of them should worry about their health more than about Europe/Asia, especially because they don’t have access to the Knicks’ medical/training staff or facilities because of the lockout.

Anthony was quoted Tuesday night saying he’d consider playing in Asia. The Associated Press spoke to him during his tour of Hong Kong with the Jordan Brand. It’s difficult to discern if Anthony is very serious about playing in Stephon Marbury-land or just doing the type of posturing the Players Association has encouraged on the topic.

Asked where he would go, Anthony replied, “China.”

Chris Paul, who’s also on the Jordan tour, said, “Same, no question.”

Anthony added, “It’s a lot of history here, the fans are great; why not, why not try it out?”

Why not? Because you owe everything to the Knicks, who ravaged their roster to obtain you, that’s why. You made the smart business decision to demand the trade at February’s deadline instead of becoming a free agent, which the Knicks would have preferred. You did so to prevent an uncertain summer regarding your NBA destination and future earnings.

As The Post reported, Bay Frazier, Anthony’s top adviser, tweeted last week about all the good offers pouring in from overseas. But the Knicks’ future rests entirely on Stoudemire’s back and Anthony’s elbow. There isn’t a whole lot around them right now.

On June 15 at a promotional event, Stoudemire admitted his back muscle was still sore. Monday, Stoudemire reportedly said from his rented Hollywood Hills home that nothing with his back had changed for the better more than three months after the injury occurred during the first-round playoff loss to the Celtics.

Stoudemire mentioned playing overseas, possibly with eyes on Israel. But he has shut it down for now, resting completely until mid-August, according to a source.

That is when a group of Knicks, including Anthony, get together in Los Angeles for informal workouts and summer rec league play. Knicks rookie center Jerome Jordan won’t be there; he leaves for Slovenia on Aug. 15. He has agreed to play there until the lockout ends.

For Stoudemire and Anthony, their offseason ballplaying should end in SoCal.