A 'You're the Ref' style question

Striker A and defender B are both chasing a loose ball towards defender B's box. Both players make contact with the ball simultaneously, knocking the ball to Goalkeeper B who then picks it up. Striker A calls furiously for a back-pass to be given.
What do you give?
Answers on a postcard, a cigarette paper, or you could even write it on your forehead and post us a picture, please.

which side has "offered" more?

R-DONO wrote:
What do you give?

A stern lecture explaining you're the ref.

If they simulaneously make contact with their heads, then no question od a backpass.........does that help.....

I should have states its with their feet.

I'd say if the striker touched it at the same time, it can't be a backpass. And I'm the ref, so even if I'm wrong, I'm right.

Of course this has an answer and is thus...

Officially a contested drop-ball should be played at the spot of contact.

I say the ball crossed the line and award a goal. Then I tell the striker I'm calling it an own goal and if he whines about his goal bonus I say "ha ha. I tricked you. It was a save after all"