Barca are putting Neymar on a diet and strengthening regime to put more weight on his frame.
"If Neymar puts on weight, they’re going to take away everything that’s best about him," Ramalho told Jovem Pam.
"They’re going to take away his speed. With small players such as Xavi, [Andres] Iniesta and [Lionel] Messi at Barca, I never imagined that they would do this.
"If he puts on weight he could suffer a knee injury, like what happened to Ronaldo. It’s a dangerous business."
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