Yes that's true - but nothing like the fame (and fortune) he had with Agassi onwards. Courier would also have been NB's first GS winner in any case, but Courier wouldn't have made him famous the way Agassi did because Agassi was a media phenomenon on a whole different level than Courier from the get go . I think it's clear that Agassi's father taught him the gamestyle he had - hitting the ball very early etc. NB isn't responsible for Agassi playing that way. I think what was probably more important for the development of the Agassi game there was the competition he had with hitting partners there that he obviously wouldn't have got in NV.