[Back In The Saddle]

I suppose you could argue that at the point where the dribbler entered the backcourt, the jump ball has clearly ended, and the tosser (not necessarily the R any more) had assumed his role as trail. Backcourt is primarily his call. So technically he's got a legitimate beef here.

However, in those first few chaotic seconds after the jump, when everybody is in process of setting up the first play, there is little to be gained by getting territorial. Call what you see.