To the best of my knowledge, Trevor Rabin ruptured his spleen as he dove into a swimming pool in a rented house in Key Biscayne, FL. The house was rented by Lee Abrams. Rabin was rushed to a Miami Hospital where it was found that he had five (yea, 5) spleens.
I believe that on 90125, and I believe I read or heard Trevor relay this, that a very large woman came down a slide and landed on him, rupturing his spleen. The entire tour was pushed back, not just a few dates. There was hopeful speculation at the time that Steve Howe might be recruited (nice way to reward Trevor, eh,...write and record the album, then some long haired vegetarian hires a woman to jump on you.....ooops, I digress).
If I recall correctly that during the 90125 tour when trevor fell ill with a ruptured spleen. Dates were cancelled at the end of 1983, and were picked up in Spring 84.