still don't understand ... why would they not put murray in nadal's place?
what difference would that make? Murray was already in Nadal's half.
The important thing is that none of the 4 highest ranked players in the draw could meet before the semis. Del Potro is now the 4th highest ranked player in the draw, so he had to be moved to Nadal's section.
If Murray was in Fed's half I could understand complaints. Because then we could have had a semi with the 2 highest ranked players in the tournament.
And they couldn't have moved him under the rules.
I think some fans here get too caught up in the number next to the seeds. should look
more at number groups(1-4, 5-8, etc) Keeping those groups away from each other is more imporant than the order you are in that group.