Per his interview during tonight's game. http://www.prolotherapy.org/prolotherapy/platelet-rich-plasma-prp-injection-technique
I've been considering trying this therapy for a hamstring injury that has persisted for over a year. Hopefully it helps Roy!
Roy had the PRP thing done for his strained hammy last year and it did nothing ... which is not to say it might not help a little bit here, but I guess it remains to be seen.
I specialized in Tissue Engineering during undergard, and remember reading that this PRP thing uses autologous growth factors, so the plasma is from Brandon himself.