personally, i'd probably just scream for a little bit. it would really vary by situation. depending upon who it is, i might try to overlap him and move back into the space he created. if he can play that ball across his body, it'd be a pretty dangerous situation. if not, he could play it out wide in the direction that he's facing and the third player could hit you in at an angle.
if they are reasonable guys, i'd talk to them about it