Can't say I recall that level of specifics. Here is an article about the game:
https://www.upi.com/Archives/1989/03/01/Tony-Massop-tipped-in-a-shot-at-the-buzzer/6313604731600/
Greg usually didn't take shots or have plays designed for him. So without reviewing the tape I'm pretty confident it had much more to do with his opportunities and aggressiveness in terms of shooting than what the opponent was doing. But can't say with much certainty.