Up and Under Move

[Carl Cramer]

Well, it's settled then. Only one applicable rule citation:

4-23-3c
After the initial legal guarding position is obtained:
The guard may move laterally or obliquely to maintain position, provided it is not toward the opponent when contact occurs.

Additionally,
Which player first committed to leaving his vertical space? Defender
Which player made a stupid play? Defender
Which player made the best basketabll play? Shooter

Reward the shooter.

If this OP is a foul on the shooter....if airborne shooter and airborne defenders share equally the right to a landing spot (...no rule citation here was supplied here, by the way), then please don't let the defenders of this world know. Because we'll have guarding players jumping up and out of vertical in front of driving shooters like a flea circus. Yikes!