I personaly don't believe in precontest last minute miracles, but if Milos has the knowledge to do it, great for him.
This story is complete baloney. Lots of competitors kind of believe in these last minute tricks but imo it doesn't work like that. There very little you can do in a few minutes that has any real effect on your physique. One thing that makes a big difference is the tan, if you are pale and slap on Dream Tan you can look totally different.
There is nothing you can inject that will make a difference immediately, not even Esiclene - it takes a good while to inflame and swell the muscle.