Why did Mosley have to get a court order on Vargas?

[Max Molyneux]

Why did he think he needed to stop him from rehydrating using a sports drink?

[states]

Why did he think he needed to stop him from rehydrating using a sports drink?

Because Mosley had trained up until that point on the assumption that all they could drink in the ring was water, I presume.

There are other arguments, the biggest one being that isotonic drinks are sticky, and could end up on the gloves, and therefore hinder the opponent.